High efficiency desulfurization catalyst in natural rubber, together with sulfur yellow, can prevent vulcanization reversion, improve heat resistance, reduce heat generation, aging resistance, improve rubber and cord adhesion and vulcanization rubber modulus. It is used in the rubber of shoulder rubber and cushion layer of load tires, which can solve the problem of shoulder hollow of slant load tires, and also can be used in the large-size thick products of natural rubber and various rubber miscellaneous products.

Ice-forming agents are mainly used for cold cloud catalytic operations from -6℃ to 20℃. Silver iodide (AgI) is the most commonly used and effective ice-forming agent because its crystal structure is similar to that of ice crystals, and it is highly effective in making ice crystals. Silver iodide forms extremely large and fine silver iodide particles in the air through combustion or explosion, and 1 gram of silver iodide can produce more than 1000 ice nuclei.