... :ASTM,AISI,BS,DIN,JIS,ETC 4.Machining available: CNC-turning, CNC-milling, Machine Center, Turning, millings, drilling&tapping, Grinding, Slotting, Spark-erosion machining ... iron,carbon steel,stainless steel,alloy steel. Make various size as per drawings or samples from customers,We provide OEM service.