centrifugally-cast concrete driven pile
离心预力混凝土桩：centrifugal prestressed concrete pile 离心浇铸混凝土灌入桩：centrifugally-cast concrete driven pile 离心浇制混凝土管;"石屎筒"：spun concrete pipe ..
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cast concrete driven pile
... 离心浇铸轴承 spun bearing 离心浇铸混凝土灌入桩 cast concrete driven pile 感应电渣离心浇铸 centrifugal electroslag induction casting ...
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