China 32mm 8 Buttons 7 Degree Rock Drilling Tapered
2021-8-6 · HS Code. 82071990. Product Description. 32mm 8 Buttons 7 Degree Rock Drilling Tapered Button Bits. ∞ Product Description: Tapered Button Bits. Button drill bit Made of best high quality alloy steel bar and tungsten carbide, through heat treatment with good quality. Suitable for most brands of Drilling Tools,such as Rock Drill,Jack Hammer with ...
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