The main material for carbon steel, stainless steel and alloy steel excellent quality,competitive ... .47,DIN,JIS,GB,BS etc.2)Material:Carbon steel,stainless steel,alloy steel etc. ... after conformed or according to customer's requirementDETAILS:MATERIAL: 10# 20# A3 Q235A,20g 20G 16Mn ... TYPE: SLIP ON FLANGE (SO), WELDING ON FLANGE, BLIND FLANGE, STEEL PIPE FLANGE, WELDING NECK FLANGE (WNF), THREDED FLANGE ...