... , BS,ISO 3.Quantity: It can be negotiated. Investment-Casting-Jack-Nut 1) Materials: carbon steel, stainless steel, alloy steel and ... /CAM service, metal processing, finishes and heat treatment 6) Product weight: 0.5 to 300kg 7) Precision machining: CNC lathes, milling ... machinery parts. Dalian Leading Metal Ltd welcome you. Investment-Casting-Jack-Nut