Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 4: Valves
Systèmes de canalisations en plastique pour la distribution des combustibles gazeux — Polyéthylène (PE) — Partie 4: Robinets
75.200 - Petroleum products and natural gas handling equipment. Including petroleum and natural gas storage devices, distribution systems, pipelines, petrol stations, dispensing devices, etc.
83.140.30 - Plastics pipes and fittings for non fluid use.
Anula a: ISO 4437-4:2015
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