Synopsis of Process Routing: DIN highly accurate, cold rolled and bright seamless steel tube is used as the tube to be galvanized. The inner and outer walls of tube are electroplate, and/or passivated with military green after galvanizing. The caps are used to cover two ends of tube to prevent from the dust. Tel: 86-021-57597455 Fax: 86-021-57596916 E-mail: shtyb-lily@steeltube-cn.com Website: www.steeltube-cn.com Main Features: color of tube: zinc white and color zinc (zinc yellow) and passivated with military green. The high brightness on the surfaces of inner and outer walls is obtained after galvanizing. A good property of antirust and anticorrosion on inner and outer walls of tube are achieved. Main Features of passivation: High anti corrosive performance, Salt spray testing as per GB/T10125,Testing times for 240 houses,with not rusting. Main Application: used in automotive industry, and in the occasion where the high accuracy, brightness and anticorrosion property of the tube are required.