Provide ANSI B16.5 series flange: slip on, welding neck, blind and so on. ANSI B16.5 Slip on flangeSizes: DN15 to DN1200, 1 ... ,JIS,DIN,BS4504,SABS1123,EN1092,UNI,GOST12820-80Types: plate, slip on, welding neck, blind, thread, socket weld flangeProcess: free forging, plate ... ,SS400,SF440,RST37.2,S235,C22.8Zhangqiu Shengli Forging Co., Ltd. is located in the beautiful and rich the Blacksmith "China ...