1)fiberglass drain grating 2)easy to be cut and assemble 3)corrosion resistant fire retardant 4)material:fiberglass 1)Name:fiberglass drain grating 2)Material:fiberglass & resin & other mixture 3)Surface:flat surface or concave surface or covered surface 4)Size:mesh size:20s,19s,25s.height:15mm,25mm,30mm,38mm,40mm,50mm 5)Advantage:corrosion resistant,fire retardant,easy to be cut and assemble. 6) ...