... quality control Material: alloy steel,carbon steel,stainless steel ,A cast iron CNC MachiningProduct Name: Machining partMaterials: carbon steel, alloy steel ... , stainless steel,Ductile iron,Gray iron,AluminumItems: FOB NingBo or ShangHaiLead time, 30 -40 ... , matelwork-metal products and stamping parts . are suitable to us also 4) They are using for machinery or ...