Fully Automatic Gold Coin Hydraulic Production Line Launched | Precious Metal Minting Solution from Yihui CastingSurging Global Demand for Gold & Silver Collectibles Pushes Intelligent Upgrade, Yihui Casting Rolls Out New Automatic Integrated Gold Coin Hydraulic Production Line，global demand for commemorative coins has surged, and Yihui's fully automatic gold coin hydraulic integrated production line has been newly finalized and put into operationIn recent years, the global investment gold coin, collection···...