机主要用于角码结构的 45 °接缝的组角成形。
用气压定位、液压冲铆，可一次对门窗四角进行组角，采用低压预置，高压冲铆，具有定位准确、操作方便、工作效率高、组角精度高的特点，是大、中型铝合金门窗生产厂家的主要设备之一。
The machine is used for forming 45 ° seam joint of corner brace structure.
Adopting pneumatic locating and hydraulic impact riveting, the machine can complete corner-connection process one-pass.
Low-pressure preset and hi-pressure impact rivet features accurate locating, easy operation, high efficiency and high precision ， so it is a necessary machine for large and medium factories producing alu-alloy doors and windows.