Stainless steel test tube rack manufacturers in stock wholesale laboratory supplies round bottom flat bottom test tube rack

Factory production laboratory flat round bottom test tube with stopper glass test tube high temperature resistance

Double-sided double-sided rack supply ep centrifugal tube rack 96-well blue orange PCR multi-function test tube rack

Disposable plastic sample collection tube 5ml/10ml/20ml disposable preservation cryopreservation sampling tube

Supply pipette head 10ul lengthened 20 50 100 200 1000ul boxed filter tip nozzle

Glass slide box in stock supply laboratory consumables 100 pathological slice boxes 5 glass slide boxes