四连杆门座式起重机采用最佳优化的组合臂架系统，具有水平落差小、变幅平稳、功耗低的特点。

Four-link portal crane using the best combination of optimized boom system, with horizontal small gap, amplitude stable, low power consumption.

youdao

四连杆门座式起重机采用最佳优化的组合臂架系统，具有水平落差小、变幅平稳、功耗低的特点。

Four-link portal crane using the best combination of optimized boom system, with horizontal small gap, amplitude stable, low power consumption.

youdao