Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing -- Part 2: Pipes— 18 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
