... plating,chrome plating. 3.Machines type --We have most of the necessary machines for sheet metalworking process , ... such as the mechanical press 5T-40T,80T,125T,250T,hydraulic machine ... 315T, arc argon welding machines,CO2 protective welding machines,spot-welding machines and supportive machines lathe,CO2bandsaw, drilling machines,milling machines. ...