checkered coil - it can be used as floor, plant escalator, work frame pedal, ship deck, car floor, etc. due to its surface is with anti-skid effect.
checkered metal sheet - its specification is expressed in basic thickness, and the height of the bulge riffed shall not be less than 0.2 times of the base plate thickness.
The surface shall be free of bubbles, scabs, cracks, folds and inclusions, and the steel plate shall be free of layering.
galvanised checkered plate - no obvious burr is allowed on the pattern.