مملكة الأكتشاف للأجهزة العلمية|Discovery Kingdoom ...
This is a professional clean up tool, everything is constructed of quality parts and built to last. The first Hungarian riffle (Miracle Mat) molded into a rubber mat and built into a portable concentrator sluice measuring 44 inches long by 8 inches wide with built in header box, plumbed with an adjustable flow valve to meter water flow and separate spray nozzle for clean up.