segmented insert meaning in Chinese

分段式衬套

Pipe joint assemblies and fittings for types 1 and 2 polypropylene pressure pipes ; tees and branches produced by segment inserts and necking for butt welding ; dimensions
1型和2型聚丙烯压力管道用管接头组件和接头.用对焊的
Pipe joint assemblies and fittings for types 1 and 2 high - density polyethylene pressure pipes ; tees and branches produced by segment inserts and necking for butt welding ; dimensions
1型和2型高密度聚乙烯压力管道用管接头组件和配件.用