... :copper or stainless 3,Various sizes Calibration seeves for pipe extrusion mould Material:cooperOur main products:1,PE,PPR,PVC,ABS,UHMW ... -PE pipe extrusion mould,etc.2,Multi-color,Multi-layer pipe extrusion mould,Multi-pipe co-extrusion mould,etc.3,Mould components:Screen Changer ,Calibrator ... !Attn:Alina Tel:+86-512-58926855 Calibration sleeves for pipe extrusion mould