... standard:ANSI /API / AWWA / DIN / BS / JIS 2.150LB 300LB 600LB 900LB 150 3.SLIP-ON WELD NECK ... steel flange &forged flanges2)Materials : ASTM A105,DIN ST37.2, ASTM A182- F304 F304L, F316,F316L,F321 ,ASTM A350 ... - PN25 PN2.0 - PN42.04)Specification: from 1/2" to 80" (DN15 to DN20005)Special designavailable as the ... JIS ,BS as well as GB ,which size 1/2"(DN15) to 80"(DN2000),And we have obtained DIN50049/ ...