1. Core barrels are used to cut an annular ring in rock or concrete or reinforced concrete.
2. Cutting ring with roller bits and releases the internal stress of rock;
3.Drilling with the method of rolling and squeezing can increases the anti-wear ability of the barrel;
4.medium or slightly weathered rock, hard or superhard bedrock;
Our company founded in 2004, headquartered in Beijing, branch factory in Shouguang, Shandong. The company is mainly engaged in the production and sales of rotary piling kelly bars , drilling tools, rotary piling rig overhaul, rig sales and accessories supply.
Over the years we focus on research and development of the production of kelly bars, drill tools, with complete kelly bars fabriction and testing equipments, as well as we own professional research , design, sales and after-sales service team. Our company has a number of self-developed patented products, matched with domestic and abroad brands such as SANY, CRRC, XCMG, Bauer, Soilmec, IMT and other brand rigs , exported to Southeast Asia, the United States, Russia, the Middle East and other countries.
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