certification:ISO9001/ISO14001 Size:1216/1620/2025/2632mm laser welding pipe for hot water Specifications:1. Five layers: Polyethylene, Adhesive, Aluminium, Adhesive, Polyethylene2. Connection mode: Overlap welding; Butt welding3. Size: 1216, 1620,2025,2632,3240,4150,50634. Series: PE-AL-PEX pipes; PEX-AL-PEX pipes ,PE-AL-PE pipes, PPR-AL-PPR pipesallow long-term working temperature is 95 °C, ...