roof's ventil stent part 1, Material: steel 2, Processing method: stamping,welding, ... , secondary machining and coating service. Your inquiries of ODM/OEM products are welcomed.Material:Steel, stainless steel, carbon steel, ... laser cutting, threading, welding , tapping, riveting, grindingSurface treatment:Hot galvanized, polishing, chrome/zinc/nickel plating, PVC coating, anodize, E-coatingApplicable ...