Ua hoʻopau maikaʻi ʻo SWMC 370 subsurface drilling rig i ka papahana grouting kumu o kahi papahana waiwai ma Guangzhou, Kina.ʻO kahi papahana waiwai ma Guangzhou e uhi ana i kahi o 62,000 m2, nona ka 44,000 m2 ma luna o ka honua a ʻo 18,000 m2 ma lalo o ka lepo.He 25 papa ma luna o ka honua...
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