Broca Conica 36mm Mining Button Bit 11 Degree 7 Tungsten Carbide Tips
                                         
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                                            Diameter 36mm 11 Degree With 7 Tungsten Carbide Tips Broca Conica Tapered Button Bit Description: Taper drill bits are made by high quality alloy steel bar and tungsten carbideinserts. Through heat treatment, our drilling tools are tough enough to meet ......                                         
                                        
                                            HEBEI MINETECH MACHINERY TECHNOLOGY CO., LTD
                                         
                                        
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