Mongoose is one of Mi-swaco brand shaker screens. Now many of them material is composite material and there is little ball in it. When the shaker screens working, the ball vibrating up nad down, then can reduce the mesh block effectively. Technical parameters Mi-swaco Mongoose Shaker Screens Mesh API20-API400 Dimension Length:1165mm Width:585mm Height:44mm Weight 13 kgs Layer 2 or 3 layers Wire mesh material SS304 Frame material Polyurethane composite material