Portable grill steel with a thickness of 5 mm.
Fat is not flowing to the coals, and on the ground. It does not burn. Grill, in addition coals, to heat the briquettes.
On top of the firebox provides space to install additional slats that you can put a pot or pan.
Photos from barbecue - test of the same grill but of plain steel. Therefore, visible signs of rust. According to tests made a few improvements.