... between 0.3mm to 3mm are available. eg. even 0.92mm is OK for us to produce though normal thickenss is 0.5,0.75,1.0 ... ,1.5,2.0,2.5and 3mm.6)Widest ... use poly locks (with different designs),geomembrane welders, vaccum testing tools, welding rods, hand extruders, labratory testing equipment etc to give customers convience ...