Sourcing map White Tapered Shaped Solid Rubber Stopper for Lab Tube Stopper. Normal using: Can be used to block glass ports, pipe mouths, fish tank openings, etc. Size 32 x 42 x 31 mm- 3Pcs. High elasticity, good insulation and sealing performance, high temperature resistance ,acid and alkali resistance, will not dissolve and swell in acidic liquids.
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