1.construction tools Manufacturer 2.ISO9001-2000 quality 3.15 years supply rock drill tools 4.high quality competitive price

Features: 1) Constructions tool accessories for auger and shield machines, head machines 2) for road construction 3)World-class quality, competitive prices

Shandong Yanggu Rock Drilling Tools Factory are a professional manufacturer of rock drilling tools,,,the main products are Construction Tools,chisel bits ,cross bits,button bits,drill rods,cemented carbide and etc

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