焊管

• Hf hanguan processing , manufacture ; lengba processing
  高频焊管的加工、制造；冷拔加工。
• Steel butt - welding pipe fittings ; technical delivery conditions
  对焊管接头.交付技术状态
• 1 steel butt - welding pipe fittings for ordinary use amendment 1
  一般用途的钢制对焊管接头
• Nipples for cables for controls ; nipples for soldering
  控制装置用缆索的管接头.钎焊管接头
• 1 steel plate butt - welding pipe fittings amendment 1
  钢板制对焊管接头
• Arc welding flux cored wires for hardfacing
  耐磨堆焊用电弧焊管状焊丝
• Hf han guan ; bicycles and spare parts ; metal products
  高频焊管；自行车及零配件；金属制品。
• Steel pipe butt welding fittings for power plant
  电站钢制对焊管件
• Thin - walled steel cylinder spiral welding machine
  薄壁螺旋焊管机
• 1 steel butt - welding pipe fittings amendment 1
  钢制对焊管接头