Shanghai Hynote Import & Export Co., Ltd.
Profile: Shanghai Hynote Import & Export Co., Ltd. is a trading company focusing on electronic gas, specialty gas, related equipments and specialty chemicals. Our products includes carbon monoxide, silane, silane mixture, high-purity propane, helium, Kr, Ar, ETO mixture, ethylene, cylinders and gas related equipments. The tetrafluoromethane is a colorless gas with ethereal odor. This gas is nonflammable but decomposes to toxic gases, including hydrofluoric acid, under fire conditions. The difluoromethane is a colorless, flammable, liquefied gas, which is shipped under pressure.