steel plate flange Standard: ANSI B16.5, B16.47 ... 2561,2565,2566,2573 / BS 4504 PN16,PN40 / GOST steel plate flange1.) Standard: ANSI B16.5, B16.47 / ... GOST 128202.) Material: Carbon steel flange-ASTM A105,A350,LF2,LF3,Q235, Stainless steel flange- 316,304,304L,316L, ... Neck, Lap Joint, Wind Tower , etc4.) Process: Free forging, Plate cutting5.) Package: used in wooden cases, wooden pallets .............