... It has better machinery intensity, higher resist-electric intensity,flat surface, toughness and is widely used for insulation material of electrical engineering ... , electrics, etc, as well as for packing, clothes and shoes making Thickness: 0.1 to 0.5mm Colors: cyan ... (in oil) In air after bending: ≥ 8kV/mm; ≥8kV/mm , and irrigation and drainage for farmland