Cast Nylon rod 1.Diameter:1-250mm 2.Grades: MC Nylon / PA6 / PA66/ PA11 / PA12. 3.Color:black,natural white,etc. 4.ISO9001 ... , toughness, mechanical lower shock, and abrasion resistance. Combined with these characteristics and good insulation, and chemical properties, it ... . 2. Poor acidproof ability, cant dye with acid or touch overmuch acid. 3. Poor lightfastness, poor endurance in pollution. ...