... , toughness, mechanical lower shock, and abrasion resistance. Combined with these characteristics and good insulation, and chemical properties, it ... moisture or water. 2. Poor acidproof ability, cant dye with acid or touch overmuch acid. 3. Poor lightfastness, ... indentation hardnessN/mm2164150145160160 10Rockwell hardness-M88M87M82M85 Cast nylon rod Cast nylon rod Cast Nylon Rod with black white color