Sib tsoo CylindricalSpur iavSiv nyob rau hauv Agricultural Drilling Tshuab Reducer Roj Machinery
Sab saum toj kaum lub lag luam hauv Suav teb, nruab nrog 1200 tus neeg ua haujlwm, tau txais tag nrho 31 inventions thiab 9 patents .Advanced manufacturing khoom, cov khoom siv kho cua sov, cov khoom siv tshuaj xyuas.