1)Stainless steel flange and carbon steel flange 2)Standard:DIN,ANSI,BS,UNI,NS,AS,GB,HG,JB ... main products of our company inclide:welding neck flanges,slip-on flanges,blind flanges,threaded flanges and plate flanges ect.,with ... specificatin from 1/2'' (DN15) to 80"(DN200). Our company now has all the ...