... ,red 3.length:100meter/roll 4:OEM service Description:Aluminum-plastic composite pipes(PEX-AL-PEX pipe):1, Non-toxic, ... not being polluted, and effective large diameter. 3, 100% insulating oxygen,stop oxygen's penetration. Aluminum-plastic pipes can be used as ... manufacturer, specializing in manufacturing multilayer PP-R, PE, Al-Plastic composite pipe and pipe fittings for 12 years, competitive price ...