This is a business in the design, deveipment, manufacture, production and sales of one-stop valve business. China is the valve of the Association of the networt have many years of production experience, excellent mechanical processing equipment, advanced testing equipment. Products as provincial and municipl quality inspection department ars in line with the identification of detection GB12459-90, SHJ408 standars the Ministry of Chemical Industry HB, HGJ HG standards, the Department of Mechanical JB stabdarts DG Ministry of Electric Power is a series of standards, and standards of the Ministry of Oil, API ANSI standard.