Shenyang Sanyo Building Machinery Co, Ltd was formerly known as Shenyang Building Machinery Factory which was founded in1950. The China's first tower crane was manufactured by SYM. ​By 2022, we have gone through a 72 years of glorious course.During these 70 years, our company has been continuously growing, until now we have totally 1,080,000 square meters productionbases which are located separately in Shenyang, Beijing, Shanghai and Tieling. SYM tower crane has become a super manufacturer not only in China but also in the world.