Ductile iron ASTM A536, grade 65-45-12, QT500-7, A395 60-40-18 1) Material: a) Ductile iron ASTM A536, grade 65-45-12, QT500-7, A395 60-40-18 b) Carbon steel and alloy steel: ASTM A216 WCB, 4430, 4130 c) Stainless steel: 304, 304L, 316, 316L, 312 d) Brass 2) Size: 50-600mm3) Pressure grade: PN10, PN16, 3,000PSI, 5,000PSI