Roj hmab taug kev pads
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Rubber taug qab ncoo rau crawler excavator paver tsheb laij teb loading machinery
Roj hmab ncoo yog ib hom kev txhim kho thiab txuas ntxiv ntawm cov khoom siv roj hmab khib nyiab, lawv feem ntau yog pib nruab rau ntawm cov hlau lem, nws tus cwj pwm yooj yim rau kev teeb tsa thiab tsis ua rau txoj kev puas tsuaj.