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                | Mining geological exploiting tools--->> Oil Drilling Tips 
                  HCE-1 (Concave Wedge Button) |   
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                | Unit£ºmm |   
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                      | Type | Dimension |   
                      | D | H | h | R | R1 | R2 | R3 | R4 | ¦Á | ¦Â | ¦Ã | e |   
                      | HCE1215-1 | 12.0 | 15.0 | 9.5 | 11.0 | 3.0 | 2.5 | 2.5 | 10.0 | 22¡ã | 18¡ã | 41¡ã | 1.2 |   
                      | HCE1416-1 | 14.0 | 16.0 | 10.5 | 16.0 | 2.7 | 2.7 | 5.0 | 47¡ã |  |    |  |  |