Jacky 2021-08-26 14:02:29

供应We are glad to introduce CHANGSHA CHAOJINGANG MACHINERY MANUFACTURING CO., LTD. (Super Diamond) . as one of the major manufacturers in China of high quality rock drilling tools used in quarrying, mining, construction and demolition industries. Using the highest quality raw materials and ultra - modern, computer - controlled heat - treating furnace together with ongoing investment in modern technologies, we are able to manufacture and supply wide range of quality products as follows: 1. DTH hammer and bit, similar or equal DHD, QL, Mission, SD, COP and Numa series ; 2. RC hammer and bit, similar or equal RE531, RE542, RE543, RE545, RE547, PR40, PR52/PR52R, PR54/PR54R, RE004, AD670, MX5456 and so on; 3. ODEX system; 4. Coupling sleeves, R25, R32, R38, T38, T45, T51; 5. Button bits, connection tapered or threaded, diameter from 33mm to 165mm; 6. Drill pipes: 64mm, 70mm, 76mm, 89mm, 102mm, 127mm, 140mm, 152mm and so on.