Company main camp: pressure containers, reaction pads, vacuum insulation low temperature cold tanks, including liquid oxygen, liquid nitrogen, liquid americium, carbon dioxide, liquid ammonia, lng storage tanks and non-standard pressure containers, various types of gas-fired gas, various types of medium-temperators, heat exchangers, decompressors, compressors, pressure cabinets, pressure-repressors, chemical energy equipment, such as gas gas (hydrogen) station completes, with lng gasification station l-cng gasification station, cng gasification station, hydrogen gasification station, industrial gasification station, pressure control door station