item: so wn thread blind sw and so on material:stainless/carbon/alloy/copper standard:ansi din ba etc size:1/2"-100" Large diameter carbon steel flange 1.specifications Cangzhou Golden Spring Pipe Fitting Co.,LtdForged flangessocket welding, welding neck, threaded, lap joint, blind, slip on;DIN2527,DIN2502/2503/2573/2576,DIN2565/2566,DIN2627/2628/2629,DIN2630/2631/2632/2633/2634/2635/2636/2627/ ...