... annual productions are over 2000 tons. ProductIntroduction1. Material:Ductile cast iron: QT400-15, QT450-10, QT500-7, QT550-6, QT600-3 ... , QT700-3Grey cast iron: HT150, HT200, HT250, HT300;Alloy cast iron: ASTM C-1362, ASTM C-1500;2 ... , 316,316L, 410, 420, 17-4PHIron ( all grades)Gray iron, Ductile iron, alloy ironAluminumASTM A356, A360, A380, ADC12 etc.1.Sand casting ...