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Rough Hard Rock Drilling Taper Button Bit H22/H25 32, 36, 38, 40, 42, 45mm for Quarry Borehole, Find Details and Price about Rock Bit Drilling Bit from Rough Hard Rock Drilling Taper Button Bit H22/H25 32, 36, 38, 40, 42, 45mm for Quarry Borehole - Xiamen Sansung Mining Equipment Co., Ltd.