![]() ![]() Sometimes, tunnels were made to drain permanently large reaches and deliver the water at a lower point. This was usually done by building two dams from bank to bank, with their foundations on bedrock, the water being carried off in a wooden flume, starting above the head-dam and terminating below the foot-dam. In river mining, an entire river was frequently deflected from its course so as to lay bare a section of its bed. Gold dredging in now practised on the rivers of California, has is now superseded river mining. Russian,Spanish,Japanese, with more than 10 years experience,export to more than 50 countries, we know your market demand very well,we can provide products suitable for your market,we can help you to make money.To understand How Does a Gold Dredge Work, we may want to start by looking at California or Alaska. International department has 15 experienced salesman who speak English, to provide 100% quality products for customers. Strong quality control team,advanced laboratory,test each batch of material, strict production process control for each working prodedure,100% full inspection before delivery of finished products. Orient flex imported most advanced industrial hose production line from Italy,13 braiding machine are automatically computer controlled, large diameter dredging hose production line are designed by Italian engineers. Orientflex founded in 2006, set up advanced laboratory, is committed continuously improve production technology,the development of new formula, improve production efficency and product quality. China-Rubber Hose|Industrial Hose|Hydraulic Hose|Dredging Hose-Manufacturer ![]()
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