High Borosilicate Glass Tube, Glass Smoking Set, Stainless Steel Dowel Pins manufacturer / supplier in China, offering Lab Vertical / Angled Neck 2-Necked Flask Reactor 20ml to 2000ml Glass Instrument, Lab 3-Necked Vertical/Angled Round-Bottom Flask 50ml to 5000ml Glassware, Laboratory Glass Petri Dish Boroslicate Petri Dish with High Boro3.3 Glass and so on.