Shandong Yanggu Rock Drilling Tools Factory is a professional manufacturer of rock drilling tools. We are able to supply all kinds of rock drilling hammers, bits and related products. Presently, we employ more than 260 workers, including 60 professionals and technicians. Annual production capacity is valued at just over USD7,300,000.Our "Jingyanggang" brand of rock drilling tools is our main brand, and is made with the latest technology and meets select international quality standards. Furthermore, these products are manufactured in accordance with IS09001 stipulations. Upon...