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See Chinese contents: GB/T 41494-2022 GB/T 41494-2022: Aluminum alloy lining plastics pipes and fittings
This Document specifies the material and structure, product classification, service conditions, requirements, test methods, inspection rules, marking, packaging, transportation and storage of aluminum alloy lining plastics pipes and fittings. This Document is applicable to aluminum alloy lining plastics piping systems for drinking water, domestic hot water, heating hot water, and air-conditioning circulating water; aluminum alloy lining plastics piping systems for indoor gas transportation. Considering under the conditions of the chemical resistance and heat resistance of the materials, it can be used for aluminum alloy lining plastics piping system for various chemical fluid and gas transportation.
