... stair treads,Ditch cover , tank grating , pavement grating , Steel Grating,Bar Grating,Ditch Covert, Stair Tread,pavement gratingWe produce ... covers etc. We can design and manufacture standard steel grating and in customized shapes per client's requirements ... recommended, America standard is available.4) Material: Mild Steel (Low Carbon Steel) or Stainless Steel5) Surface Treatment: Untreated, Painting ...