Place of origin:hebei, china (mainland) Brand name: kingdream Model number: iadc 127 Type: drill bit Machine type: drilling equipment Certification: api Material: cr-mn alloy Processing type: forging Use: coal mining Commodity: roller cone bits milled tooth Bit size: 12 1/4" 311mm Reg: 6 5/8"reg Color: blue, according to customers demand Formation: soft formation Market: all over the world Price: competition price Delivery time: delivery on time Iadc codes: wide size code Packing:54.33.33cm Dimensions: 311mm Weight:90 kg
