metal welding services. 1.professional custom drawing service. 2.co2 protect welding, painting. 3.welding tooling design. Metal welding servicesAccepted ... :2000 certificate and export license, we are a professional metal processing company with 10 years history.Till now, ... , aluminum, brass, alloy etc. 3) We manufacture metal parts according to customers' design or drawings. Company Introductiondirect ...