32mm 7 Buttons 7 Degree Rock Drilling Tapered
32mm 7 Buttons 7 Degree Rock Drilling Tapered Button Bits is suitable for mining,quarring,tunneling and so on. It is widely used for gound quarring and underground drilling. SPECIFICATIONS FOR 32MM 7 BUTTONS 7 DEGREE ROCK DRILLING TAPERED BUTTON BITS. Item. Specification.
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