... 4)Standard:ANSI,JIS,DIN 1.elbows pipefitting2.ISO9001-2000Approal3.We are an ISO 9001-2000 certified company, which ... all of our products are meet this international standard. Our company has establish a good business credit in the ... or according to the requirement of clientsApplication AreaPetrochemical and chemical company, Fertilizer Industry, electric power, shipbuilding, papermaking, construction, ...