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Open-pit mining - WikipediaOpen-pit, open-cast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow.open pit huiling520,Basics of an open pit mineFig. 1, above shows an illustration of a Open Pit Surface Mine. The definition of a open pit mine is "an excavation or cut made at the surface of the ground for the.open pit huiling520,Open Pit Original Barbecue Sauce, 42 Fl Oz - WalmartFree 2-day shipping on qualified orders over $35. Buy Open Pit Original Barbecue Sauce, 42 Fl Oz at Walmart.

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open pit huiling520