... brass, aluminum ,etc2. process:punching,bending,welding,grinding,milling,machining, spraying etc3. Use: Machinery, automobile, ... ProcessCNCPrecisionMachining: welding, forming, shaping, punching, drilling, milling, grinding, rolling, stamping, deepdrawing, bending,etc.Surface ... including metal processing manufacturing, and form a complete set of production is given priority to, product ...