... Thickness of material: 0.2mm˜1.5mm Overlap width:10cm Welding width: 12.5mm×2, interior cavity 12mm Seam strength: ≥85 ... 2.Accessories: Including control box,hot wedge,silica gel roller,steel roller.3.Packing:4..Operation:5.Application:Application covers refuse ... project, cultivation pond anti-seepage project, roofing waterproofing project etc. Steel wheels of plastic hdpe pipe welding machine