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Best Choice Naisfei New
Naisfei 50 pcs Plastic Centrifuge Tubes, 50ml Plastic Centrifuge Tubes Skirted Conical Bottom Laboratory Test Tubes with ✔ Package Including: 50 x centrifuge tubes with screw caps,Centrifuge tube is 50ml capacity, perfect for working with liAcrylic New
Centrifuge Tube,25 pcs Plastic Centrifuge Tubes,50ml Plastic Centrifuge Tubes with Screw Cap,Self-Standing Plastic Test ☆ Packaging and capacity:You will receive 25 50 ml centrifuge tubes, more than enough for easy comparison of multiple saQuantumix New
50 Pack 50ml Plastic Centrifuge Tubes with Screw Cap, Skirted Conical Bottom, Self - Standing, Polypropylene Test Tubes 50ml centrifuge tube, made of high-purity PP material, maximum RCF: 9,400, can be autoclaved at 122℃, can be frozen to -Zhooooonglf New
4 Pcs 50ml Plastic Centrifuge Tubes with Screw-on Cap, Polypropylene Graduated Micro Centrifuge Tube, Self Standing, Blu 【Product Size】1.0 x 4.5inch / 25 x 114mm(DxL),Capacity: 50 ML,4PCSBest Value F Fityle New
500 Graduated 1.5 Ml Microcentrifuge Vials High and Suitable for samples, food colourings, craft use, etc.Roczential New
Roczential 200 Pack Centrifuge Tube 10ml Test Tube Laboratory Centrifuge Tube Experiment Centrifuge Tube Test Centrifuge 【Liquid Containers】The wall is smooth, reducing liquid adsorption residue to ensure the validity of test results.AUEAR NewAUEAR, 1000 Pack 0.2ml Microcentrifuge Tube with Lids Plastic Sample Small Bottle Container Test Vials Micro Centrifuge (Package Included) 1000 Pcs Microcentrifuge TubesPOPETPOP NewPOPETPOP Micro Test Sample Vial: 37pcs Centrifuge Tubes with Screw Cap Graduated Micro Centrifuge Tube - Graduated Vial These cryovial tubes are made from premium material, especially designed for freezing.Abbraccia NewAbbraccia 5ml Instant Bottle Centrifuge Bottle SOLUSTRE NewSOLUSTRE 1000 Pcs 0.5ml Centrifuge Tubes Plastic Graduated Microcentrifuge Vials Tubes Mirco Test Tubes with Caps for Sa 🧪Precise Scale: 0.5ml scale is clear for accurate sampling, 0.5ml increments, suitable for scientific research in the lSharplace NewSet of 100 Centrifuge Test Tubes Storage Containers, Clear, 0.5ml 100pcs Round plastic centrifuge tubes with graduations, very hygienic and convenient to use.Juxiamal NewJuxiamal 12pcs 10ml Plastic Squeezable Dropper Bottles, White, PE, Safe, Soft, Reusable, Travel, Medical, Arts & Crafts, These dropper bottles have a good seal, can be used to dispense and store most liquids, dropper can be well controlled lQwertyui New25 Pack 50ml Plastic Centrifuge Tubes with Screw Cap, Skirted Conical Bottom, Self - Standing Polypropylene Test Tubes Laboratory-Grade Cylinder: This is a plastic graduated cylinder specifically designed for laboratory tests, ensuring relKUNLONGSKY New15ML Transparent Centrifuge Tube 15mL Centrifuge Tubes 50 Pcs Sterile Tubes with Leak-Proof Screw Caps,Conical Tubes wit Wide Temperature Resistance - From -80°C to 120°C, Tubes can withstand extreme temperature conditions, guaranteeing consMipcase NewMipcase Conical Centrifuge Tubes 50mL- 25 PCS Polypropylene Centrifuge Tube with Attached Blue Flat Top Screw Cap- Plast Specification: About 50mlTAODAN NewTAODAN Centrifuge Tubes 200PCS 0.2 ml Clear Graduated Polypropylene Microcentrifuge Tubes Test Vials Small Bottle Contai Made of high-quality polypropylene material, no bubbles, no impurities, high and low temperature resistance. Suitable foPvieked New25 PCS Conical Centrifuge Tubes 50ML, Leak-Proof Screw Caps Sterile Polypropylene Test Tubes, Plastic Container with Gra 🌎[High-Purity Material] These centrifuge tubes and plug-seal screw on caps are made of medical grade polystyrene, sturdANKROYU NewANKROYU 500PCS Plastic Centrifuge Tube, 1.5ml Microcentrifuge Tube with Lid Graduated Test Tube, Micro Centrifuge Tubes, Construction:Crafted from polypropylene, these microcentrifuge tubes ensure robust a flat, sleek finish; From solutionsLiebeWH New10pcs 5ml Plastic Transparent Centrifuge Tube Frozen Test Tubes Bottles Screw Cap Pack Container with Silicone Seal Professional design: the storage of a cryogenic liquid nitrogen tank (-180 C) with a pressure scale of 5 ml can be usedJntahecg New50ml Centrifuge Tubes with Screw Cap, Skirted Conical Bottom, Test Tubes 50 Pcs. Capacity and Material: This product is a 50ml centrifuge tube crafted from high - quality PP (polypropylene) material, eGrekywin NewGrekywin 2ml Plastic Vial Tube Sample Storage Container for Fragrance, Beads, Liquid, Pack of 100 【DIMENSION AND PACKAGE】Diameter: 0.41in(10.5mm), capacity: 2ml. One package includes 100 pcs of vial tube storage contaiBoNene NewPlastic Test Tubes 1000 Piece Centrifuge Tubes 1.5ml Clear Plastic Centrifuge Bottle with Flat Top Snap Cap Test Tubes P ADTZYLD NewADTZYLD 12-Pack Reusable 2 oz Glass Bottles with Lids & Funnels - Perfect for Travel, Potions, Ginger Shots, Oils, Juice 【12 Pack 2 oz Glass Shot Bottles】Great Value Pack include 12 Pack 2 oz (60 ml) Small Glass Bottles with Lids and 2 stainloywhcdtak New100 to 500Pcs 1.8ml PP Lab Analysis Freezing Tubes Graduation Centrifuge Tube Volume Vials Bottles with Screw Cap (Size Material: PlasticBezall NewBezall 50Pcs 15ml Plastic Empty Squeezable Dropper Bottles Eye Liquid Dropper Lab Sample Refillable Containers with Chil Eye Dropper Bottle made of LDPE plastic, Capacity: 15 ML(0.5 oz)PiurUf NewPlastic Test Tubes 1000 Piece Centrifuge Tubes 1.5ml Clear Plastic Centrifuge Bottle with Flat Top Snap Cap Test Tubes P Good sealing performance: The micro test tube with lid can reduce sample contamination and avoid liquid volatilization aAcbbMNS NewAcbbMNS 10 Piece 1000ml Twin Neck Plastic Bottles Twin Chamber Bottle Chemical Liquid Bottle (1L-10pcs) Designed to store agricultural chemicals, oils and garden liquids.BIGTEDDY New50pcs Plastic Empty Dropper Bottle Squeezable Drop Liquid Container 20ml Good sealing, pointed stopper with white color capGtouse NewEmpty Liquid Dropper Bottles Plastic Squeeze Refillable DIY Containers 50PCS (15ml) Capacity: 15ml dropper Bottle. Package includes 50pcs Eye Dropper Bottle. Enough quantity to meet your needsUnxuey NewUnxuey 5ml Glass Clear Sample Bottles Screw Cap Lab Vials Supply Liquid Collection Container for Essential Oils Plastic Convenient and Versatile: Our 5ml clear glass bottles are a must-have for any avid essential oil or liquid collector. ThKQIVEN New25 Pack Glass Sample Vial, Liquid Sampling Small Glass Bottle with Black Plastic Screw Caps, Lab/Travel Storage Vials fo High Quality: Each sample vial is made of premium borosilicate glass, which is sturdy, durable and reusable, resistant tQSAENHA New100pcs Bottled Mini Plastic Containers Sample Bottles Clear Plastic Container Eye Cream Vial Refillable Bottle Pet Shamp Plastic Liquid dispenser-- small size and light weight make them easy to carry with. suitable for travel, business trip,Baluue NewBaluue 5ml Tubes, Microcentrifuge Graduated Tube with, Polypropylene Small Sample Bottle Vials Container for Lab Sample [Polypropylene Material] Made of polypropylene material, these tubes with graduated are adapted to micro , ensuring reliiplusmile Newiplusmile 12pcs Plastic Pill Bottles, 100ml Empty Medicine Bottles with Caps, Small Clear Reagent Bottle Chemical Contai Transparent Design: These 12 plastic pill bottles come with a clear design, making it easy to identify contents. With aSwpeet NewSwpeet 25Pcs Clear Dispensing Bottles with Small Funnels Kit, 1oz Boston LDPE Plastic Bottle, 30ML Empty Squeeze Dropper 💥【What You Get】------- In this kit, You will get 20pcs clear dispensing bottles and 5pcs small funnels. Our clear plastBiomed Solutions NewBiomed Solutions 2Pcs Vial Rack,Green Polypropylene(Pp) Vial Holder For 2Ml Autosampler Vials With 50 Holds Diameter 12M Idea for 2mL HPLC Autosampler vials in 12mm diameter and other similarly-sized test/culture tubes such as 15ml/18ml/2mlHomoyoyo NewHomoyoyo 100ml Plastic Reagent Bottles - Set of 6 Translucent Wide Mouth Sampling Containers with Screw Caps for Home - Sample vial for lab:the capacity of bottle is proper, which is suitable for routine oil analysis needs,reagent bottlesINTLLAB NewINTLLAB Lab Vortex Mixer, Touch Function Lab Vortexer, Tattoo Ink, Gel Polish, Eyelash Adhesives, Acylic Paints, Test Tu ✔ EXQUISITE - Small, compact and reliableFENX NewElectric Bottle Capper Head, Handheld Cap Sealing Machine Bottle Capper Capping Machine for Capping Diameter 30‑40Mm, fo WIDELY USED: Suitable for all kinds of plastic bottles, glass bottles, laboratory test tube bottles, centrifuge bottles,VASANA New12PCS 25ML/0.85oz Empty Reusable Clear Plastic Sample Bottles Sputum Culture Testing Tube with White Screw Cap Cosmetic Size: 85 x 23mm / 3.3inch x 0.9inch (Total Height x Bottom diameter), portable size, convenient to put into your bags foYWY NewVial Rack,2 Packs Sample Bottle Rack Vials Autosampler Rack Stackable Test Tube Rack Organizer Centrifuge Tube Holder 50 Offers 12 mm vial racks for holding 2 mL vials for table top sample prepAymorder New100 PCS White 5ml Empty Plastic Squeezable Dropper Bottles, Clear Eye Liquid Dropper with Caps, Lab Sample Refillable Co 【Package included】100 Pcs 5 ml dropper bottles contains three parts, Bottle body, Inner drip, threaded protective cap (YLuxshiny NewLuxshiny 50pcs 5ml Refillable Plastic Test Tubes with Screw Caps Small Sample Bottles for Laboratory Storage for Travel Sample bottle--sturdy materials used in these small bottles ensure that they are safe and have good sealing, making themSOESFOUFU NewSOESFOUFU 30pcs Transparent Plastic Wide Mouth Bottles for Lab Chemical Samples Airtight Sealing Vials for Travel Office Wide opening advantage: the large mouth opening allows for easy and dispensing, for storing , powders, or liquid samplesULTECHNOVO NewULTECHNOVO 4pcs Laboratory Plastic Bottles with Caps Clear Storage Containers 250ml Portable Travel Bottles STURDY AND REUSABLE: these sample bottles are made of sturdy, heat-resistant plastic that is and can be reused many timeGLEAVI NewGLEAVI 30 Pcs Plastic Vial Test Tubes Lab Test Tube Mini Bottles with Lids Sample Vials Wide Mouth Lab Reagent Bottle Cl Ideal for small quantities: suitable for storing small amounts of samples or liquids, ensuring you have the right quantiMipcase NewMipcase Reagent Bottle 2pcs: Lab Graduated Storage Bottle Leakproof Round Lab Reagent Media Sample Sealing Bottle for Ex Fine Workmanship: It is made of high-grade material, which can be for a time.TRMFUSA New30Pcs Plastic Storage Empty Tubes 40ML Clear Plastic Test Tubes With Screw Caps Jelly Cookie Nuts Containers Clear and transparent: high transparent and durable plastic test tube, through which you can see things inside it clearlHYYCES NewMicroscale centrifuge tube 10ML, pack of 100 1.Selected raw materials create good quality, high-quality PP and polypropylene environmentally friendly materials creatPOPETPOP NewPOPETPOP 50pcs 15ml Conical Tubes with Scale Flat Top Screw Cap Test Tubes for Lab Laboratory Scientific Vial Tubes Well-made and Transparent Material: Our 15ml screw-cap tubes are made from high-quality plastic material that offers ultBIGTEDDY New50PCS 30ml Plastic Empty Liquid Bottles Vial Reagent Sample Containers Material: PET bottle, Plastic Screw sealing lid protects frome leakage. Capacity: 15ml 20ml 30ml 50mlTwdrer NewTwdrer 50PCS 5ml Plastic Graduated Vial Tube with Screw Caps,Small Test Sample Bottles Tubes Container with Lid Material: High quality PP plastic material,safe,sturdy and durableKesell NewKesell 10 Pack 30ml (1 oz) Glass Sample Vial Clear Graduated Measuring Bottles Empty Reusable Liquid Vials with Plastic Package Includes: 30 ml 10 pcs glass graduated bottles + 10 pcs plastic funnelsSalmophfeel New50pcs Lab Dropping Bottles,Squeezable Plastic Liquid Dropper Bottles,Empty Eye Liquid Bottles,Eye Droppers Bottles (20ml Material: PET/LDPEBIGTEDDY New50pcs Plastic Empty Dropper Bottle Squeezable Drop Liquid Container 10ml Good sealing, pointed stopper with white color capTEHAUX NewTEHAUX Chemical Reagent Bottles 4 Material Leak-proof Liquid Storage Containers for Lab Use It is very safe to use, wide range of uses. Suitable for liquid, reagent and sample storage.FRCOLOR NewFRCOLOR 50pcs Small Vials Plastic Bottles Sample Containers Screw Cap 5ml Leakproof Portable Mini : dispenser these mini sample vials are made of , and practical to use.TOPPERFUN NewTOPPERFUN 50pcs Refillable Small Bottles with Screw Cap Lightweight Test Tubes for Travel Camping Outdoor Activities Lea Bottles with caps:small bottles are lightweight and compact, making them easy to use and carry, can be easily stored inerioctry New12PCS 1ml Empty Clear Refillable Glass Perfume Sample Vials Bottle Container Test Tube With Dropper for Essential Oils A Capacity: 1ml ; Material: glassBIGTEDDY New50pcs Plastic Empty Dropper Bottle Squeezable Drop Liquid Container 30ml Good sealing, pointed stopper with white color capSluffs NewSluffs Clear Plastic Test Tubes, 50Pcs 5ML Small Bottle Vial Storage Container for Lab, Candy and Beads - Sample Bottles 【Convenient Storage】These plastic sample bottles are perfect for storing small quantities of liquids, powders, or otherTutuxio NewTutuxio 20pcs 5ml Glass Sample Vials, Liquid Sampling Small Glass Bottle Storage Container with PE Liners Black Screw Ca Bottle dimension: 18x42mm/0.7x1.65inch, 5ml volume, 20pcs.Auto-plaza NewAuto-plaza 40pcs HDPE Plastic Thin Tip Dropper BottlesSmall Empty Squeeze Dropper Bottles including 2x Mini Funnels Set 1. Material: Polyethylene (PP) and High-Density Polyethylene (HDPE).SOLUSTRE NewSOLUSTRE Sample Bottles Lab Glass Reagent Bottle, 30ml Reagent Media Bottle Small Mouth Storage Bottles Sample Liquid St Lab Glass Reagent Bottle, Reagent Media Bottle Small Mouth Storage Bottles Sample Liquid Storage Containers for Labs, ClUMETASS NewUMETASS 2 oz Wide Mouth Lab Reagent Bottle, Translucent HDPE, Sealed Leak-proof, Pill & Water Sample Bottle (5 Pcs) The bottles are made of food-grade HDPE plasticAlipis NewAlipis Centrifuge Tube Rack Centrifuge Tube Holder Laboratory Supplies Test Tube Holder Syrup Bottle Rack Centrifuge Tub Kesell NewKesell 18 Pack 20ml Glass Sample Vial Clear Graduated Bottles Empty Reusable Liquid Vials with Plastic Screw Cap and 5 F Great Value 20 ml Lab Sample Vial Set: 18 pcs glass graduated bottles + 5 pcs plastic funnelsKICHOUSE NewKICHOUSE 50pcs 5ml Refillable Plastic Sample Bottles with Screw Cap Test Tubes for Lab Use and Storage Sample bottle--sturdy materials used in these small bottles ensure that they are safe and have good sealing, making themAIMALL NewAIMALL 100PCS Small White HDPE Plastic Capsule Bottles with Airtight Screw Cap, 30ml 50ml 100ml Medicine Containers for 💊 Perfect for Capsules, Granules, and Small Supplements These small bottles are designed to securely store pills, granuEHGCCAD NewDual Spin Prp Kit Plasm Centrifuge Tubes Equipment Blood Cell Separator Serum Separation Gel Regen Lab Centrifugeuse Prp Easy to set up and use.EHGCCAD NewLX-4K Mini Centrifuge Handheld Micro Centrifuge Laboratory Centrifuge, Laboratory Centrifuge, Lab Supplies used in labs 【Easy-to-read display】Automatic lid-lock release.HEALSOPTHY NewHEALSOPTHY 10pcs Clear Plastic Lab Reagent Bottles with Wide Mouth and Secure Caps for Reagent Storage Sampling Liquid a Versatile sampling: ideal for use as a sampling bottle, it is suitable for laboratories, cosmetics, food industries, andEHGCCAD New800MINI Electric Blood Centrifuge Low -speed Centrifuge Large -capacity Low -speed Centrifuge Small Mini Laboratory Cent * The special high-strength ABS engineering plastic centrifugal turntable ensures that the centrifuge tubes are not easiEHGCCAD NewLaboratory Centrifuge Slow Speed Desktop Centrifuge 4000r/min Large Capacity Sediment Centrifuge Machine 50 Ml * 6 Tubes This product is made by shell, motor,speed control board, timer, speed governor, etc.Tiiyee NewHoney Gate Valve, Honey Gates Seal Bucket Bee Valves Beekeeping Tool Extractor Tap Bottling Filter Tools Beekeepers Esse [Unbreakable, Sturdy Honey Extractor]: This honey gate valve extractor and beekeeping honey gate valve is made up of durEHGCCAD NewLaboratory Mini Centrifuge, Laboratory Centrifuge,Education & Office Suppliesm, Laboratory Centrifuge used in labs and s 1. Large radius rotor with 8 tube holes, centrifugal force is 1.5 times bigger than ordinary 6-hole rotor at the same roWEKADRIN NewWEKADRIN 5pcs Wide Mouth Bottles for Laboratory Use Reusable and Airtight for Chemical Storage Liquid Medicine and Powde Easy sample handling: wide mouth design makes it simple to add and remove samples, saving time and improving efficiency,EHGCCAD NewTG16B High Speed Centrifuge Laboratory High Speed Centrifuge Small Desktop High Speed Centrifuge, Benchtop Centrifuges M 【POWERFUL CENTRIFUGAL】Powerful brushless motor with high performance.Widely used in laboratory, medical, clinical and inOLYCRAFT NewOLYCRAFT Pack of 3 Green Centrifuge Tube Rack Bottle Rack with 50 Holders Diameter 12 mm Sample Bottle Rack Stackable Bo Package and size: you will receive 3 test tube storage racks with 50 holes, the size of the racks is approx. 191 mm longAlvinlite NewDecanter Cleaning Beads, 300Pcs Reusable Cleaning Beads for Cleaning Glass Bottles Vases Operation is simple:Pour the beads into the container, add water until the beads are covered and rotate. Shake the bottlEHGCCAD New7000rpm Mini Centrifuge Laboratory Blood Centrifuge Machine Laboratory Centrifuge, Centrifuge Laboratory Blood Centrifug 1) Reliable performance of heating and cooling elements, high-performance temperature control systemNewzoll NewLiquid Sample Collection Glass Bottles Vials Screwcap Brown Bottles Capacity 5ml,1/6 Oz Pack of 50 CONVENIENT - Great for storing essential oils, chemistry lab chemicals, colognes & perfumes.SUNFECILI New10Pcs Reagent Bottle Wide Mouth Reagent Bottle,Plastic Wide Mouth Lab Liquid Sample Seal Storage Container with Spiral C SAFE MATERIALS: These storage bottles are made of PP material that is safe, shatterproof, easy to clean and reusable asEHGCCAD New7000rpm Mini Centrifuge Laboratory Blood Centrifuge Machine Laboratory Centrifuge, Centrifuge Laboratory Blood Centrifug 1) Reliable performance of heating and cooling elements, high-performance temperature control systemEHGCCAD NewLaboratory High Speed Micro Hematocrit Centrifuge Minicentrifuge, Micro Centrifuge PCR Centrifuge, Small Portable Centri Intimate protection measures to prevent damage due to excessive temperature.EHGCCAD NewLaboratory Centrifuge Machine, 800-1 Centrifuge 800-1 Laboratory Centrifuge 800-1 Lab Centrifuge Machine used in labs an Easy to use and quite operation – Automatic lid-lock release after running.EHGCCAD NewCF0506 Platelet Rich Plasma Centrifuge Prp 1.5-15ml Clinical Blood PRF Centrifuge Machine For PRP Medical PRP Centrifuge <1.1Kg, high capacity,Low wind resistance, low heat rise;Jarvials New6pcs 90ml Clear Glass Bottle with Aluminum Lid, Bottle For Test Tube, Suitable for Decoration Scientific Laboratories (6 EHGCCAD NewBlood Centrifuge Prp Plasma Centrifuge Machine Digital Medical Centrifuge Lab 4000rpm 5000rpm 5ml 10ml 15ml Centrifuge T 1.Various rotorSOLUSTRE NewSOLUSTRE 50pcs Small Refillable Bottles with Screw Caps Leak Test Tube Containers for Travel Sampling and Organization a Empty Powder Bottles, 5ml Plastic Sample Bottles Loose Powder Container Empty Cosmetic Sifter Loose Powder Jars RefillabEHGCCAD NewLaboratory Mini Palm Micro Centrifuge Machine, Electric Centrifuge Laboratory,laboratory Centrifuge Machine used in labs 1. Easy to operate with dual start/stop functionEHGCCAD NewMedical Centrifuge Lab Blood Centrifuge Digital Prp Plasma Centrifuge Machine 4000rpm 5000rpm 5ml 10ml Centrifuge Tube u 【High Speed Mini Lab Centrifuge】 Fixed speed,most experimental needs. low noise is less when working, let you concentratEHGCCAD New800MINI Electric Blood Centrifuge Prp Plasma Low-speed Centrifuge Machine Laboratory 15ML*6 Centrifuge Tube 4000rpm used * The special high-strength ABS engineering plastic centrifugal turntable ensures that the centrifuge tubes are not easiUMETASS NewUMETASS Clear Pill Bottle Squeezable with Screw Cap, Graduated Food Grade Containers with Embossed Scale for Water Sampl Premium PP Build: Expertly crafted from top grade polypropylene (PP), these plastic bottles are incredibly durable for rSAFIGLE NewSAFIGLE 50Pcs Plastic Vials Sample Containers Bottles with Screw Caps for Travel Labs and Pharmacies Lightweight Durable Small vials:small size and light weight make them easy to carry with suitable for travel, business trip, sports, outdoorEHGCCAD New900-1S Blood Centrifuge Prp Plasma Centrifuge Machine 4000RPM Digital Medical Centrifuge Lab Centrifuge Tube used in lab 【Easy-to-read display】Automatic lid-lock release.running. Safe rotor snap design, to ensure that the rotor will not be lEHGCCAD NewElectric Blood Centrifuge Laboratory Prp 4000rpm Plasma Centrifuge Machine 15ML*6 Centrifuge Tube used in labs and schoo 【Easy-to-read display】Automatic lid-lock release.running. Safe rotor snap design, to ensure that the rotor will not be lEHGCCAD NewElectric Blood Centrifuge PRP Plasma Centrifuge Digital Centrifuge Lab 4000rpm Medical Practice Desktop Centrifuge Machi - The lower-speed centrifugal machine is widely used in laboratory of education, science and producing department for biEHGCCAD New4000RPM Electric Centrifuge Medical Separation Of Plasma Laboratory Centrifuge Prp Isolate Serum For 5/10/15mL Centrifug - Speed control function.EHGCCAD NewPotable Mini High Speed Centrifuge Machine WTL-4K, Portable Lab Benchtop Centrifuge For Medical Electric Centrifuge Mach Top cover for reducing noise efficiently.