... practicable temperature from -180C~+260C and a wax-like surface. Filled Teflon graphite rod has the lowest coefficient of friction of ... all known solid materials. Filled Teflon bar has the best electrical properties of all plastic ... , 180, 200, 250, 270, 300Length ( mm )100mm, 300mm, 1000mm, 2000mm Filled Teflon graphite Rod