plastic aluminum multilayer pipe Material: Polypropylene and Aluminum Sizes: 20mm to 75mm ISO9001:2008, ISO14001 OEM service plastic aluminum multilayer pipeFeatures:Material: Polypropylene and AluminumSizes: 20mm to 75mmPressure Rating: 1.0MPa, 1.25MPa and 0.4MPaColors: white, green, greyStandard: GB/T18742.2-2002,GB/T18742.3-2002, DIN8077, DIN8078Certification: ISO9001:2008, ISO14001Application ...