Jiatong Machinery Co., Ltd. is located at No. 2339 Dongfanghong East Road, in the city's development zone. The company produces oil machinery mud pump parts, construction machinery, and reducer gears and gearboxes. It has its own import and export rights. In 2014, the company obtained two quality certifications from the American Petroleum Institute (API-7K and 11E). Its products are sold worldwide, with Gardner Denver dual-cylinder mud pump single-metal cylinder liners and related fluid end parts being particularly popular in the US and Middle Eastern markets. The company's heat treatment workshop is the largest heat treatment processing center in northern Shandong, equipped with over 30 sets of various heat treatment equipment, including car bottom furnaces, carburizing furnaces, pit furnaces, salt bath furnaces, high and medium frequency machines, and presses. These facilities enable it to perform quenching, tempering, carburizing, straightening, and other treatments on oil machinery parts, auto parts, mining parts, and various molds. Customers for outsourced processing come from both within and outside the province. Company website: http://www.jiatongzz.com/index.asp