管道系统

• Pneumatic tube conveyor systems - graphic symbols
  风动管道系统.图形符号
• Specification for welded joints for shipboard piping systems
  船上管道系统用焊接接头规范
• Pipework - corrugated metal hoses and hose assemblies
  管道系统.波纹状金属软管和软管组件
• Gas transmission and distribution piping systems
  气体传输和分配管道系统
• Shipbuilding - piping systems - graphic symbols
  造船.管道系统.图形符号
• The universal pipe system for all drainage requirements
  符合所有排水要求的通用型管道系统
• Colours . iron and stellfactories . marking of fluids in pipes
  颜色.钢铁工厂.管道系统的标记
• It has its own hot - tub bath with super - jets
  房子自己有热水管道系统
• Gas transmission and distribution piping systems ; addenda
  气体运输和气体分配管道系统.修改件
• Specification for copper and copper alloy pressure piping systems
  铜与铜合金承压管道系统规范