product:hot pipe pert-al-pex size:OD25MM ID20MM application:hot water,solar,gas,wire,oil ... 9001: 2000 certified.No.2: Our products include PEX-AL-PEX, PEX, PPR, PE, PEX-A/B, PE-RT Piping and Fittings. No.3: Our Values ... used for oxygen input in hospital; hot pipe pert-al-pex