... residential quarters,garden facilityes,ect. Detailed Selling Lead Description steel angle ,flooring grating is a NEW building material, it ... ,stadium,port,walkway,platform etc.Our main products are steel grating floor, trench cover, well cover, stair treads, fence etc ... , 100mm are recommended. 4? Material: Mild Steel (Low Carbon Steel) or Stainless Steel 5) Surface Treatment: Untreated, Painting or Hot ...