... flange 1.standard:ANSI /API / AWWA / DIN / BS / JIS 2.150LB 300LB 600LB 900LB 150 3.SLIP-ON ... , SP-44, AWWA, API, DIN, JIS, HG, GB, JG, BS.8)All the flanges are according to the ASTM ... , disk ,and unconventional parts, our forging flanges consist of 30 specifications derived from 7 standards, i.e. ANSI ,API ,MSS ... ,AWWA , DIN ,JIS ,BS as well as GB ,which size 1/2"(DN15) to ...