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Factory price glass test tube flat round bottom high borosilicate test tube 15*150 18*180 20*200 25*200mm

High borosilicate fermentation tube Dushi small tube glass tube 4*30mm tube microbiological test tube

Glass stirring rod round head solid drainage Rod borosilicate glass diversion Rod Lubert tear raw material glass rod

Factory price Du's small tube fermentation tube small tube 200 PCs/bag small glass test tube 5*30 6*30mm

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High Borosilicate Glass Stirring Rod Glass Rod Diversion Rod Corrosion Resistant Solid Round Head Transparent for Laboratory Use

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Plastic test tube PS benzene permeable material free test tube outer diameter 12*75 13*100 15*100 complete specifications

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Fermentation tube Duchner tube 6*30/10*50mm various specifications glass small tube microbial small test tube 100

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High temperature resistant glass test tube 15*150 18*180/20*200mm flat round bottom test tube 12*75 10*100

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