... 5mm to 15mm; 4.surface treatment: zinc plated. High quality stamping parts for auto car1) material of stamping part:steel, steel ... can do: 15mm;7) Other Production equipment: bending machine, nibbler, hydraulic machine, table drill;8) surface treatment: zinc plated, ... powder coating, painting, pickling;9) Inspection machine: CMM.1. Working Hour: -------------- 7:00AM--10:00PM ( ...