... /min 3. Welding material thickness: 1-4mm Geomembrane Wedge WelderLHPW-900 Geo-membrane Wedge Welder (Climbing Welder)Function: The control of this ... all thermal-fused material such as LDPE, PVC, HDPE, EVA, PP and the like.This series of welding machine is excellent ... )Joint width: 120mmInsulation class: Class IINet Weight(about ): 13Kg Geomembrane Wedge Welder