... acceptable professional manufacturer over 10years Product NameNickel hardware bolts and nuts screwMaterialsIron, aluminum, steel, copper, plastic, ... Zinc, Black Oxide, QPQ,electroplating, spraying, and painting and so on.PackingWooden box, or as per the ... machining, drilling, turning, grinding, tapping, mould design and processing, casting, sheet mental working etcApplicationAutomation machine, medical ...