Dynamic hydrogen: used in the field of hydrogen transportation, with purity of 99.9% - 99.99%, providing power support for hydrogen buses and hydrogen buses
Electronic hydrogen: hydrogen with various grades of purity is provided according to the demand, which is used in chemical industry, electronic industry and other fields, such as smelting and preparation of monocrystalline silicon
Standard hydrogen: high-purity special gas, purity>99.9999%, which can meet the requirements of high-precision gas chromatograph, polarograph, semiconductor epitaxy, etc. for ultra-high purity hydrogen