... manufacturer over 10years Product NameNickel hardware connection 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 ... center machining, drilling, turning, grinding, tapping, mould design and processing, casting, sheet mental working etcApplicationAutomation machine, medical ...