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Glass test tube flat mouth rolling round bottom test tube diameter 10/12/13/15/18/20/25/30mm crimping

PS plastic tube with Cork round bottom 16*150 20ml transparent hard large discount

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in stock 3-20ml disposable plastic test tube put free test tube transparent hard test tube powder bottle freeze-dried powder bottle

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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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