gold washer blankets double rib carpet gold sand separator carpet gold dust extraction mat stripe line mali guinea gold recovery mining carpet the thickness is 10mm gold washer blankets double rib carpet gold sand separator carpet gold dust extraction mat stripe line mali guinea gold recovery mining carpet the size is 1x20 meters/roll gold washer blankets double rib carpet gold sand separator carpet gold dust extraction mat stripe line mali guinea gold recovery mining carpet the weight is 2.2kg/square meters