KHR75 is the ultra-light hydrogenated rosin originally developed by our company. It has the advantages of water color white, good thermal stability, low odor and good alcohol solubility, and can be widely used in solder paste and flux products, it can also be used as a tackifier resin for high-end adhesives. KHR130 is a highly hydrogenated modified rosin product produced using the world's highest quality rosin rosin as a raw material, through high-tech special process technology. This product has broken the domestic gap and has also changed the monopoly pattern of this type of rosin by foreign companies. Products with high degree of hydrogenation, color white, strong oxidation resistance, heat resistance and other characteristics; the product is mainly used in aerospace electronic solder paste, flux, high-end coatings and other industries.