钢管

• Light gauge stainless steel tubes for ordinary piping
  普通管路用轻型不锈钢钢管
• Stainless steel pipes for machine and structural purposes
  机械和结构用不锈钢钢管
• Cold - formed steel hollow sections for building structures
  建筑结构用冷弯矩形钢管
• Extra heavy - duty electrical rigid steel conduits
  电气装置用特重型刚性布线钢管
• Welded steel pipe for supporting roller of belt conveyer
  带式输送机托辊用电焊钢管
• Steel tubes . bend test on test pieces taken from tubes
  钢管.管试验件样的弯曲试验
• Ultrasonic examination for arc welded steel pipes
  电弧焊钢管的超声波探伤检验
• Welded stainless steel tubes for machine structures
  机械结构用不锈钢焊接钢管
• Carbon steel square pipes for general structural purposes
  普通结构用方形碳素钢钢管
• Shipbuilding - welding sleeve type joints for steel pipe
  造船焊接.钢管用套筒型接头