Shanghai Koko Valve Group established in 1987, which is API, CE, PED "H", ISO9001-2000 certified. We mainly produce gate valve, globe valve, check valve, (full welded)ball valve, butterfly valve, cock valve, knife gate valve, slag lock valve, power-station valves and etc. of 1/4"-80"(DN6-DN2000mm), 150lb-2500lb(1.0Mpa-42Mpa)，and working temperature from -196℃ -680℃, to the international advanced standards of API, ANSI, BS, DIN, NF, JIS, JPI, GB and so on. Material mainly include carbon steel, alloy steel, stainless steel, monel, 20# alloy, and ect., or special valves made according to users&＃039; requests. Cooperate with us, you will be provided with high quality and competitive price.