Pipe joint assemblies and fittings for types 1 and 2 high-density polyethylene (HDPE) pressure pipes; tees and branches produced by segment inserts and necking for butt welding; dimensions— 4 стр.
Pipe joints and their elements for pipes of high-density polyethylene (high-density PE) under pressure, type 1; general quality requirements and test methods— 4 стр.