... , No brokenPE-Xb (cross-link) : Crosslinked polyethylene pipes adopts HDPE as main naterial, chemical covalent bonds formed in polyethylene ... of crosslinking ≥65%, used for the transportation of cold and hot water.PEX pipes are produced and tested according ... little resistance9. High-impact strength, Never breed bacteria 10. Not fragile, fixing briefness, steady capability11. High and low temperature ...