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