24/29,Hollow Glass Stopper,Glass plug,5 pcs,Laboratory glasswareGlass Stopper, Ground Joint Made from borosilicate glass 3.3,GG17. Used for condenser,flask.... Welcome to our store!We are
24/29,Hollow Glass Stopper,Glass plug,1 pcs,Laboratory glasswareGlass Stopper, Ground Joint Made from borosilicate glass 3.3,GG17. Used for condenser,flask.... Welcome to our store!We are
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