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Used in cold and hot water supply system inside of building, such as cold and hot water for industry and civil, drinking water and heating system.Features:1) Polypropylene-random (PP-R) water-supplying pipes and fittings from 20 to 160mm2) Three colors: white, grey and green, and other colors available upon requests3) Aluminum PP-R (PP-R pipe with aluminum foil layer) pipes from 20 to 63mm available4) Brass inserts (welding die) especially for PP-R from 20mm to 63mm available5) PP-R pipe system related accessories available, including tools, clamps, and weldingmachines6) Materials:a) Yansan brand from Sinopec Corporationb) Vestolen P9421 from German7) Standards of products:a) Chinese national standard: GB/T 18724b) International standard: ISO 15874c) German standard: DIN8077 / 8078
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