2. Safety rope for live operation, made of silk, moisture-proof silk, Denima and Dupont silk.
3. High strength safety rope made of Denima, Dupont and high strength wire.
4. Special safety rope, such as fire safety rope, whose material is inner 4.3mm steel wire rope and outer woven fibrous skin; marine corrosion-resistant safety rope material is Dinima, Paster, Polymer Polyethylene; and high temperature-resistant safety rope material is Kevlar, which can be used in-196. It can operate normally for a long time in the range of C to 204 C. Shrinkage rate is 0 at 150 ~C and does not decompose or melt at 560 ~C. The inner core of the heat-shrinkable safety rope is synthetic fiber rope, and the outer skin is heat-shrinkable sleeve, wear-resistant and waterproof.