HP-BS fa'asologa vacuum si'i e masani ona fa'aaogaina mo le fa'amomoliina o masini leisa ma le fa'aogaina o u'amea, ma e masani ona fa'aoga fa'atasi ma koluma cantilever cranes po'o alalaupapa ta'iala. O meafaigaluega e mafai ona pulea e AC, DC, poʻo pneumat ...
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