Polyethylene fittings for use with polyethylene pipes for the supply of gaseous fuels -- Metric series -- Specifications -- Part 3: Electrofusion fittings -- Technical Corrigendum 2— 2 стр.
83.140.30 Plastics pipes and fittings for non fluid use / Пластмассовые трубы, фитинги и клапаны
75.200 Petroleum. Including petroleum and natural gas storage devices, distribution systems, pipelines, petrol stations, dispensing devices, etc. / Оборудование для переработки нефтяных продуктов и
