Qingdao Three-Factor Gas Technology Co., Ltd. Qingdao Three-Factor Gas Technology Co., Ltd. has become a new benchmark in the gas industry with “Love Gas Innovation and Application”. It has a research center in Shanghai and has three brands of “Zongtai, Benyi, Interesting” and has independent import and export rights. The company integrates scientific research, design, production, sales, installation, maintenance and service around gas and application. Its products and services cover medical, electronic, chemical, glass, paper, food freezing, rubber and plastics, automobile manufacturing, machining, steel. Production, sewage treatment and other industries.