The point recommends line: medium small scaled copper alloy, aluminum alloy, medium small scaled forging piece surface pure sand; shipbuilding steel plate, bridge, steel plate processing, special steel plate; casting and forging processing; peening processing; the resin surface processing etc. Our company uses Electric Arc Furnace to smelt and second quenching and realizes the automated production line. The quality is completely according to the SAEJ444 standard of USA.