Swin PEX-AL-PEX pipe(1014-3340) 1.certification:ISO,8760,CE 2. ... Din/GB 3.Size from 1014mm to 3340mm Swin PEX-AL-PEX pipe(1014-3340) Feature:1.Size:1014mm to 3340mm2 ... ISO9001-2000 standard,got the CE/CNAS certification Swin PEX-AL-PEX pipe(1014-3340)