roof's ventil stent part 1, Material: steel 2, Processing method: stamping,welding, zinc electroplating 3, customized design ... service. Your inquiries of ODM/OEM products are welcomed.Material:Steel, stainless steel, carbon steel, aluminum, zinc, brass, plastic etc.Making process:Stamping, deep ... , (IGS, STP, STL and X-T) roof's ventil stent part