... has advanced technological equipments, all kinds of quality checking Equipments.2. Now a series of strict quality control process and ... of computer and other material control equipments, which includes the raw material, production process control, final product quality control.2. All ... 309, 314, 316,316L, 410, 420, 17-4PHIron ( all grades)Gray iron, Ductile iron, alloy ironAluminumASTM A356, A360, A380 ...