... 1.Technical Standard:(1).Material: C3771, C37700N, CW614N, CW617N, MS58 as per request(2).DN15 to DN50,1/2" to 2"(3).Working ... company, following the customers’ special demands and some standards such as GB, IEC, NBMA, JIS, DIN, etc.(3)We have ... corporation.Certifications: ISO9001, ISO14001 and OHSAS18001."JKLONG” brand was honored as “China Famous Brand”.Jiekelong valves was award the title of ...