... 2) strict quality control 3) with advanced equipments 4) prompt delivery 5) non-standerd parts Item Noscrews and boltsMaterialsiron,aluminum,steel ... treatment,polishing,PVD/CVD coating,galvanized,electroplating,spraying,painting and so onBusiness scopeCNC center machining,drilling,turning,grinding,tapping, ... once we receive your valued enquiries with detail specification. screws and bolts