the size of the riffles in gold dredges
the size of the riffles in gold dredges. Our Experience in Gold Recovery Goes Back More Than 50 years . We feel the most important part of a gold mining dredge is the ability to recover and retain gold. Our recovery trays (sluice boxes) utilize a combination of Hungarian forward riffles for coarse gold and dovetail riffles in the back section for fine gold. Different Sizes of Gold Suction ...