Compared with ABS, PP material has higher heat resistance, chemical resistance and lower cost. Therefore, PP is widely used in packaging, tubing, fibres, automotive parts, etc. The advantages of PP lie in its good processability, mechanical properties and chemical stability. In addition, PP has excellent fatigue and wear resistance, which makes it suitable for manufacturing parts that are subject to long-term pressure and friction. However, the disadvantages of PP are its poor impact resistance and its tendency to oxidise in certain environments.