... 1.Technical Standard:(1).Material: C3771, C37700N, CW614N, CW617N, MS58 as per request(2).DN15 to DN50,1/2" to 2"(3 ... company, following the customers’ special demands and some standards such as GB, IEC, NBMA, JIS, DIN, etc.(3)We have passed ... as “China Famous Brand”.Jiekelong valves was award the title of “High-tech Enterprises”, "Famous brand of Chinese Valves”.Limited resources, unlimited ...