tamping rammer phaj compactor

Kev ua tau zoo heev nrog siab durability. Lub tuam txhab tau tsim kom tau raws li cov qauv siab ntawm kev ua lag luam tam sim no.
Qhov kev thov rau siab durability thiab tsis tshua muaj txij nkawm tus nqi ntawm cov khoom siv hydraulic yog ua ke nyob rau hauv tag nrho cov tsim ntawm peb hydraulic compactor.