Behind the seat. According to the person who inquired about the auto parts, the excavator of Kaiyuan 70 has a box at the side door of the engine and a safety cover under the armrest backrest of the seat. Kaiyuan 70 excavator is a product produced by Guangxi Kaiyuan Machinery Manufacturing Co., Ltd., which was established in June 5438+ 10, 2005. It is a private joint venture specializing in the design, development and manufacture of construction machinery and agricultural machinery. It is also the first manufacturer in Guangxi to develop and produce semi-feeding miniature rice harvester and the first enterprise in China to successfully put into mass production.