... :Carbon Steel, Stainless Steel Size:1/2''~120''(3000mm) Certificate:ISO9001:2000, PED, AD2000 Processing Technic: ForgingRaw Material: CS:A105(N), C22 ... , MSS, API,AWWA, JIS, DIN, UN,EN,BS,GOST, NFE and etc.Size: 1/2~120 (3000mm)Non-standard: unit piece ... with diameter below 3 meters and unit weight below 4 MTs, according to customers drawing.Certificate: ISO9001:200 Quality System Certificate AD2000 ...