Yanggu County three links Drilling Tools Co., Ltd., is a set design, development, production, sales, service as one of the professional production enterprises, the company's main products are: coal drill bits, water coal drill, rock, coal drill bits, air drill, soft rock drill bits, diamond anchor bits, diamond core bits, diamond core drill bits, carbide bolt bit; coal drill rod, ground water drill pipe, air drill pipe, drill pipe of soft rock, drill pipe bolt special solder, rock drill pipe and all kinds of mining equipment, mine to use common tools and equipment.