Zhengzhou high tech Zone, China[email protected]
Whitney remedied this with his construction of a semiautomated, machine tool factory. In 1867, American engineer Joseph R. Brown 18051870 introduced his universal milling machine at the Paris Exhibition. Browns machine arose following the testing in 1861 of one designed to solve the problem of producing spiral flutes for twist drills.
If you want to learn about our products , please call or write mail consultation.