Xawaaraha sare ee Shiinaha double lakabka saqafka go'yaal samaynta mashiinka

Tani waa China xawaaraha sare double lakabka go'yaal saqafka samaynta mishiinka, soo saara xawaaraha gaari karaa 30 m daqiiqadii for trapezoid iyo go'yaal dahsoon.And lakabka double badbaadin kara meel badan oo warshad.