... , WPHY 70 ,DIN 1629 St37, RST37.2 St52 b)Stainless Steel: ASTM/ASME SA403 304,304L ,316, 316L, WP304L, 3 WP316 ... , 1.4571,JIS SUS304,SUS304, SUS304L, SUS316, SUS316 c) Alloy Steel: ASTM/ASME SA234 WP12, WP11,WP22, WP5, WP9, WP91.ASTM ... )painting(black yellow blue) c) hot galvanized, electrical galvanized d) epoxy coating e)nylon surface4. SizeDN10-DN50005. Process a)free forging ...