1.pex-al-pex pipes size 16~32mm;2.German Standard and ISO9001:2000;3.High quality and competitive price. 4.fast delivery time Supply all series of pex-al-pex pipeswe strictly follow the ISO9001:2000 quality management system. Our products are designed and manufactured to conform to the standards of DIN8077, DIN8078, and our main markets are Europe, South American, North American, Southeast Asia, ...