Founded in 1993, Shandong Guomao Guotai Speed Reducer Co., Ltd. is a large-scale reducer manufacturer in China. We own a workshop covering an area of 50,000sqm and over 600 machining tools and testing equipment. In our 4,000sqm constant temperature workshop, there are 58 sets of high-efficiency and high-precision NC gear grinding machines and an automatic gear testing center, which represent world-class level. The machine's installation and debugging precision is up to Grade 3, which ensures ...