1.Material:PE,PEX,PERT,AL; 2.sizeaa16-32mm 3Different size and colors available; 4.Cerificate: ... ,HDPE and PP-R pipes & fittings.Aluminum-plastic composite pipes(PEX-AL-PEX pipe): Specifications:1.Size: φ16, 20,26, 32mm; 2. Material:Crosslinked ... :2000 are approved.Sample and Package: Workshops: Our Factory: multilayer pipe/pex-al-pex pipe /water pipe/composite pipe