GB Industries, established in 1998, of Kimpo-City, Kyunggi-Do, South Korea,as a full line manufacturer of Hydraulic Attachments such as Hydraulic Breaker(Hammer),Vibro Hammer, Crusher, Shear, Core Drill, and Quick Coupler. The wide variety of products you see on our website is the result of our goal to provide several series of Hydraulic attachments with various combinations of features, performance,and leading edge design. For the last several years, our R & D team with great reputation from our customers by a step ahead technology and various support, consists of engineers and designers more than 10 years of experience in this field.In this way we are able to deliver the hydraulic attachment products at virtually every price level while giving consumers choices within those levels. GB Industries technology is sold all over the world so we must have products that address the needs of our international customers as well as those in the domestic Korean market. With the market share of 1st lank in China and Australia, GB exports to Middle East, Eastern Asia, Europe & U.S.A and GB products are being recognized as master piece by the customers for its high quality and technology.Please reference our model numbers in your questions so we may answer them accurately.