... assembly part manufacturer 2.Material:Carbon steel 3.Finish:Zinc plated 4.Over 10 years experience 5.ISO cert Zinc plated metal stamping assembly ... , bending, deep drawing. Metal fabrication (machining) - Wire EDM, drilling, turning, milling, grinding. Welding - Electrowelding, argon arc welding, spot or seam welding Forging, sand casting ...