Taug kev Menyuam / Qib Cov Quav Cov Ntaus
Taug kev rollers yog tsim los ntawm txhua hom kev lem.
Txaus siab khiav nrawm heev
Lub nplhaib tuab-walled txheej nplhaib ua rau kom muaj siab khiav nrawm, thaum txo cov distortion thiab khoov siab.
Kev pab lub neej ntev
Cov nplaum nplaum nplaum nplaum nplaum nplaum nplaum nplaum yog qhov siv rau cov ntawv thov uas txawv lub nplhaib tawm ntawm qhov kev xav tau los yog qhov chaw ntxhov siab yuav tsum tau qis dua.
Txhua qhov kev xav tau rau cov crawler crane undercarriage qhov chaw, tiv tauj peb dawb.
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