什么是 Flex Drilling？
Down-the-hole hammer rigs for hard rock and deep boreholes — high penetration in granite and basalt, built for water wells, mining and quarrying.
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去 X 发帖Down-the-hole hammer rigs for hard rock and deep boreholes — high penetration in granite and basalt, built for water wells, mining and quarrying.
还没有评论，来抢沙发吧！
X 上关于 Flex Drilling 的真实讨论
去 X 发帖