石油化工业用管 Pipes & Tubes for petrochemical industry | 锅炉热交换管 Pipes &Tubes for boiler and heat exchanger industry |
医药行业用管 Pipes &Tubes for pharmaceutical industry | 自动化与其他工业用管 Pipes &Tubes for automation and other industry |
食品工业用管 Pipes &Tubes for food industry | 建筑装饰行业用管 Pipes &Tubes for architectural decoration industry |
航天航空业用管 Pipes &Tubes for aviation and aerospaceindustry 
|