Bel-Art SAFE-LAB Teflon Resin Stoppers Hollow SCIENCEWARE F201971550. They will not react with acid alkalies or salts. The SAFE-LAB PTFE stoppers have slightly thicker walls than glass stoppers so that acids and alkalis can be added without worrying...
Bel-Art SAFE-LAB Teflon Resin Stoppers Hollow SCIENCEWARE F201971550. They will not react with acid alkalies or salts. The SAFE-LAB PTFE stoppers have slightly thicker walls than glass stoppers so that acids and alkalis can be added without worrying...
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