Treatment of materials in the nature of common metals and alloys thereof; treatment of metal materials by means of tempering, finishing, casting, soldering, welding; treatment of metal materials during the manufacturing process for metal products by means of pressing, deburring, machining, laminating, shaping metals, and nitriding; iron and steel working services for third parties, namely, machining and forging; foundry services for third parties, namely, forging of metal goods and aluminum s...