It is widely used in medicine and chemical industries, and for teaching and research. It has many kinds of specifications, such as boiling flask, flat bottom with long narrow neck, Erlenmeyer flasks and distilling flask with side tube etc. We can also make it according to your requirements. Attached the products we have stored Round bottom Flask (50ml-20000ml) Micro Round bottom Flask (5ml-25ml) Flat bottom Flask (50ml-20000ml) Micro Flat bottom Flask (5ml-25ml) Boiling Flask (100ml-500ml) Conical Flask (10ml-1000ml) Iodine Flask (100ml-1000ml) Distillation Flask (30ml-10000ml) Micro Distillation Flask (10ml-20ml) Petroleum Distillation Flask (100ml) Long Neck Flask of Nitrogen-Fixing (100ml-1000ml) Micro Flask of Nitrogen-Fixing (30ml-100ml) Fractionation Flask (60ml-10000ml)