Materials for making fall arrester cover

Generally speaking, the double shell includes the outer shell and the inner shell. The two shells complement each other and play an excellent protective role. The inner shell is generally made of alloy steel, and the shell is made of polypropylene.

There is no need to say more about the alloy steel shell. It is strong and resistant to manufacturing. What kind of material is polypropylene?

Polypropylene is a polymer made of propylene through addition polymerization. Polypropylene is a thermoplastic synthetic resin with excellent performance. It is a colorless and translucent thermoplastic lightweight general-purpose plastic. It has chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high wear-resistant processing properties. Because polypropylene has plasticity, polypropylene materials are gradually replacing wooden products, and high strength, toughness and high wear resistance have gradually replaced the mechanical function of metal.