1. Laser-welded or Overlap-wleded 2. Full sizes 1216,1418,1620,2025,2026, ... ,and suitable for gas and fuel transportation9)Can be bended or straightened without restriction Full size1216,1418,1520,1620,1925,2025 ... ,2632 PE(X)-AL-PE(X) Composite Pipe for hot or cold walter