Kev Tiv Thaiv Lub vijtsam thiab thauj khoom platform
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Kev Tiv Thaiv Lub vijtsam thiab thauj khoom platform
Kev tiv thaiv vijtsam yog qhov kev nyab xeeb hauv kev tsim kho cov vaj tse siab. Cov kab ke muaj cov nqaj hlau thiab cov kev nqa khoom hydraulic thiab muaj peev xwm nce los ntawm nws tus kheej tsis muaj crane.