Makina ophulitsira amtundu wa Crawler amatengera makina ophulitsira mchenga a cantilever amtundu wa centrifugal, okhala ndi ngodya yayikulu, yogwira ntchito kwambiri komanso yopanda ngodya yakufa. Moyo wautali wautumiki ndi dongosolo losavuta; Njira ya rabara yovala kuvala imachepetsa kugunda ndi ku......
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