For NR-IR-RR-SBR-NBR-CR. It is a flat vulcanizable material that is difficult to scorch, and the vulcanized rubber is snappy and flexible. It also has good aging resistance and tear resistance. Regeneration-Very effective for large amounts of rubber. It mutually activates with acidic vulcanization accelerators such as thiazol-based and thiuram-based. For SBR, BR and NBR, it is better to use a secondary vulcanization accelerator. Suitable for industrial supplies and belts.