... ASTM, ANSI, JIS,DIN,GB, BS, NF, etc.4) Material: Stainless steel such as ASTM A734/734M,ASTM A351M,ASTM A297/A297M, ASTM A747,ASTM ... 5112,JIS G5121 , etc.Copper alloy such as ASTM B584, ASTM B763, JIS H5114, JIS H2206, DIN 1714( ... G5121, DIN 17445, etc.Gray iron such as ANSI/ASTM A48 ,BS 1452, NF A32-101, DIN 1691 ... ,JIS G5501, ect.Ductile iron such as ANSI/ASTM A536 ,BS 2789, DIN 1963, NF A32-201 ...