The Calstar brand originates from Calstar Associates Company, a California-based company founded in 1984 (Kellerda Limited Company in the USA). "Cal" is the English abbreviation for California, and "star" means "star." Thus, Calstar signifies "Star of California."

The Calstar Kuanbao Entrepreneurial Team (Environmental Equipment Project Development) was formed in 1995, specializing in the research, development, and sales of environmental equipment, as well as the distribution of solvent recovery equipment from international brands.

Established in 2001 on the mainland, Shenzhen Kuanbao Environmental Protection Equipment Co., Ltd. specializes inSolvent Recovery MachineResearch and sales. Established Taiwan Kuangbao Industrial Co., Ltd. in 2003, obtaining national patents and trademarks for solvent recovery machines in the same year. Successfully launched the second solvent recovery machine brand, "Jingdebao," in 2008. Implemented a multi-brand business strategy. Shenzhen Kuangbao Environmental Protection Equipment specializes in standardized, professional mass production of solvent recovery equipment. In 2010, founded Taiwan Kuangbao International Co., Ltd., with operations spanning both domestic and international markets. In 2012, the company partnered with CNOOC to establish a membrane treatment waste solvent system. The 7th generation fully automatic intelligent solvent recovery machine was launched in 2013, and an automated online gas solvent recovery machine was developed in 2014.

Calstar Widebao's eco-friendly products includeSolvent Recovery MachineOily/Water Separators, Centrifugal Oil Purifiers, Vacuum Pressure Reducing Pumps, Condensate Recovery Units, etc.

Calstar Kuanbao has grown to become a leading enterprise in the Chinese solvent recovery machine industry.

Calstar Kuanbao has become a brand with significant influence in the Chinese solvent recycling machine industry.

The Calstar brand originated from Calstar Associates Company, an American California-based company founded in 1984. "Cal" is the abbreviation for California, and "star" means "star," with Calstar symbolizing "Star of California." The Calstar Wide Treasure entrepreneurial team was formed in 1995, named after the philosophy of "broad-mindedness in dealing with things, turning waste into treasure." In 2001, Shenzhen Wide Treasure Environmental Protection Equipment Co., Ltd. was established on the mainland, specializing in the research and sales of solvent recovery machines. In 2003, a branch was set up in Taiwan...