Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels. Part 3. Thermoplastics fittings for pipes of nominal outside diameter less than or equal to 63 mm— 20 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
