38mm 7 Buttons 11degree Taper Button Rock Drill Bit for Construction Works and Energy
Description
38mm Button Drill Bit 11?? Small Rock Drill Bits For Granite Rock 38mm 7 Buttons 11?? Taper Button Rock Drilling Bit Product Characteristics Button bit taper angle: 4??, 4??46??, 6??, 7??, 11??, 12?? Length: …






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