... .size:1/2"~60" 2.standard:DIN,ANSI,JIS,GB 3.material:Carbon steel DIN 2528 flange Size1/2"~60" (DN15-DN2000) Wall ... ,WP5,WP9,WP91TechniqueForged or Casting StandardASTM A182 ,DIN2573,2572,2631,2576,2632,2633,2543,2634,JIS 5K,10K,16K,20K, ANSI ... ISO9001:2008;ISO14001; PortTianjin seaport,China. The process flow diagram: din 2528 flange