... 2.good quality 3.competitive price 4.soon delivery standard steel DIN 2527 flange JIS ,ANSI , DIN ,BS4504 ... & ISO9001 WN,SW,THD, BL,PL,SO standard steelDIN 2527 flange STANDARD: JIS ,ANSI , DIN ,BS4504 ,EN1092, AS2129 ... blind flange , ring and so on materials:carbon steel and stainless steel. SALES MARKET: Japan, Korea, Canada, America ... within our clients. extruder screw barrel standard steel flange