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Dust sampling nozzle Oil smoke sampling nozzle 3012H stainless steel smoke dust sampling nozzle 4.5-6-7-8-10-12mm

Single mouth flat bottom flask distillation flask 50M100ml250ml500ml1000ml2000ml high borosilicate high temperature resistant

Laboratory butterfly water blocker 50mm water blocking plug 0.22um0.45um1um3um PTFE membrane air filter

Ceramic tweezers Polytetrafluoroethylene tweezers Acid and alkali resistant high temperature tweezers

10PCS Glass seed bottle laboratory conical display sample bottle chicken heart bottle with rubber stopper 125/250/500ml

5ml ion chromatography injection bottle with filter element/without filter element Plastic sample bottle tube cap 250 pcs/pack

10PCS Standalone nylon cylinder filter 13mm 25mm 0.22mm 0.45um filter head

100ml sampling cup long handle medicine spoon glass transparent high borosilicate high temperature resistant acid spoon

Stainless steel sterilization barrel, pipette pipette big belly straw sterilization barrel, petri dish sterilization barrel

100PCS Disposable injection sterile syringe needle syringe individually packaged 15 20ml push medicine feeding supplement

Polytetrafluoroethylene mortar corrosion-resistant grinding bowl strong acid and alkali mashing jar PTFE grinding bott

PTFE medicine spoon round head sample spoon solution spoon 5ml10ml acid and alkali resistance Experimental consumables