Ключевые слова:
Joining processes|Underground|Heat-sealing|Service pressure|Pipe supports|Liquids|Thermoplastic polymers|Pipework systems|Spaced|Test pressure|Plastics|Bending|Pressure pipes|Hydraulic tests|Polyethylene|Pipes|Pipe fittings|Polymers|Pipe couplings|Metals|Installation|Melting