
Qingdao Guida Special Gas Co., Ltd. is specializing in special gas, industrial gases, medical gases and calibration gases for more than seven years. The main gases we are dealing with are Oxygen(O2), Carbon Monoxide(CO), Ethylene(C2H4), Sulfur Hexafluoride(SF6), Carbon Tetrafluoride(CF4), Nitrous Oxide(N2O), Sulfur dioxide(SO2), CO2/ETO, Helium, Liquid Ammonia(NH3), Butane, Propane, Liquid Cl2 and etc. As for the grade of different gases, it includs industrial grade, food grade, medical grade, electronic ...