国产黄色片大全,欧美日本黄色片,国产精品免费久久久久影院仙踪林,夜夜骑日日操,aa国产视频,一级中国黄色片,福利国产片

Product description

roduct usage: this car is mainly used for large and medium repair and sifting operation of railway lines.

The product features: 1, without dismantling the top rail and sleeper of the ballast bed, the machine realizes continuous operation by self walking and completes the cleaning operation of ballast bed. 2, it can sift out the special section of tunnel and bridge and shoulder shoulder, and has the function of collecting dirt and soil at the same time.

Product overview

Effect：

This car is mainly used for large and medium maintenance of railway lines.

Characteristic：

1, without dismantling the rail and sleeper on the top of the ballast, the machine can carry out continuous operation by self walking and complete the cleaning operation of the ballast bed.

2, it can sift out the special section of tunnel and bridge and shoulder shoulder, and has the function of collecting dirt and soil at the same time.