... heat deflection temperature. II. PA Nylon Characteristics (Plastic pipe tube): 1. High strength and stiffness 2. High ... safe, noise reduction III. PA Nylon Disadvantages (Plastic pipe tube): 1. Poor dimension stability, electrical and mechanical properties ... pipe tube):Bearings, gears, wheels, roller shaft, water pump impeller, rope, fishing nets and transformer coil, Nozzle, Fan blades, structural ...