MG-861F End-Milling Machine for Curtain Wall Material CE Certification and SGS Test Main Features:1. Mainly used for milling 38 to 90 ... and rigidity.3. Pneumatic hydraulic cylinder drives, which makes the machine move smoothly, stepless speed adsjuting is available, no creeping. The ... of 3 ain motors, which can be adjusted up and down, back and forward according to the dimension of aluminum materials ...