ʻO kahi ʻōlelo e pili ana i ka pale Shale Shaker i hana ʻia e Kangertong Kangertong me ka ʻoiaʻiʻo e hoʻopuka nei mākou i nā pale pani wale nō akā ʻaʻole nā mea kumu.● ʻO Derrick, FLC, Hyperpool, PWP, PMD nā hōʻailona o Derrick Corporation.● NOV Brandt, VSM, Cobra, King Cobra, D380, D285P a me LCM he mau hoailona o Va...
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