... :2008 2,professional manufacturer 3, high quality and competitive price 4,OEM and ODM forged flange Shapestainless steel integral pipe flangeOD15mm-1500mmpressure class ... ,1500,2500 Material ASTM A182 WP304,304L,316,316L,317, and so on. Application petroleum, chemical industry, medicine, electric power, astronautics ... ANSI, DIN, JIS, BS, ISO, GB/T, JB, SH, HGS and so on flange style SO,WN,IF,SW,TH,SE ...