Pipe Joints and Elements for Polypropylene (PP) Pressure Pipelines, Types 1 and 2; Bends Formed from Pipe for Butt-welding, Dimensions
1型和2型聚丙烯（PP）压力管道的管接头和元件；对焊用管道弯头.尺寸

1980-08-01

Pipe Joints and Elements for Polypropylene (PP) Pressure Pipelines, Types 1 and 2; Injection Moulded Elbows for Socket-welding, Dimensions
1型和2型聚丙烯（PP）压力管道的管接头和元件；承插焊接用注射成型弯头.尺寸

1980-08-01

Pipe Joints and Elements for Polypropylene (PP) Pressure Pipelines, Types 1 and 2; Bends of Segmental Construction for Butt-welding, Dimensions
1型和2型聚丙烯（PP）压力管道的管接头和元件；对焊用分段结构弯管.尺寸

1980-08-01

Pipe Joints and Elements for Polypropylene (PP) Pressure Pipelines, Types 1 and 2; Injection Moulded Tee Pieces for Socket-welding, Dimensions
1型和2型聚丙烯（PP）压力管道的管接头和元件；承插焊接用注射成型三通件.尺寸

1980-08-01

Pipe Joints and Elements for Polypropylene (PP) Pressure Pipelines, Types 1 and 2; Turned and Pressed Reducing Sockets for Butt-welding, Dimensions
1型和2型聚丙烯（PP）压力管道的管接头和元件；对焊用旋压异径套筒.尺寸

1980-08-01

Pipe joint assemblies and fittings for types 1 and 2 polypropylene (PP) pressure pipes; adaptors for fusion jointing, flanges and sealing elements; dimensions
1型和2型聚丙烯（PP）压力管的管接头组件和配件；熔焊接头、法兰和密封件的适配器；尺寸

1988-11-01