亚洲天堂一线黄片,免费一区二区三区毛片10分钟,国产二级毛片,全部免费毛片在线,久久国产精品99精品国产,日日骑夜夜骑,亚洲国产成人在线

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.