These bottles are mechanically strong and chemical resistant. Provided with a pouring ring for drip-free operation. The screw caps and pouring ring are made of PP; The bottles, screw caps, and pouring rings can be sterilized and autoclavable. 25ml bottle have uniform GL25 thread, 50ml bottle have uniform GL32 thread,
Screw Neck Sampling Reagent Bottle Petroleum Industry Amazon
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