Qingdao Baigong Industrial and Trading Co., Ltd. is one of the leading enterprises specialized in developing, engineering, manufacturing and exporting gas cylinder products and industrial gases in China and our products were approved by Qingdao Foreign Economical & Trading Commission. We, Qingdao Baigong, can supply wide range of gas cylinders, seamless steel gas cylinders, aluminum alloy gas cylinders, composite gas cylinders, acetylene cylinders, which can be filled with Oxygen Gas, ...