... Material: can be steel, brass, stainless steel, plastic, Aluminium 2) Surface treatment: zinc, chrome plate, nickel plate ... welding structure, bending parts, casting, and Aluminum extrusion etc.2.we are experienced in designingproducts according ... machining (milling, turning, drilling)*Painting*Welding*Flame cutting*Aluminium extrusionSurface treatmentPolishing, Chrome/Zinc/Nickel Plating, Painting, ...