... ISO 9001:2000 2.ANSI,DIN,JIS, flange 3.OEM service offered 4.A105,Q235 flange Carbon steel DIN Slip on flange1. Product size ... Zhangqiu Xingyi Forging Co., Ltd. is specialized in forged steel, stainless steel line pipe fittings and flanges, which includes the series ... , PN10, PN16, PN25, PN40 4. Material:Carbon Steel:A105, Q235, SS400, RST37.2, C22.8Stainless Steel: 316L, 316Ti, 304L, 321, 321H etc ...