Xov xwm kev lag luam

Kev muag khoom loj hlob ntawm excavators yog tig zoo, tshwj xeeb tshaj yog me me excavators.Txawm li cas los xij, txawm hais tias cov txheej txheem rov qab los thiab kev muag khoom rov qab mus rau qhov zoo, nws yuav tsis txhais hais tias qhov cuam tshuam ntawm kev lag luam suav excavator tau tshwm sim.Tam sim no, cov kws tshaj lij ...Nyeem ntxiv»