Hot Dip Galvanized Steel Grating 1. Bearing bar pitch:30,40,60mm 2 ... 3.Type:Plain,Serrated,I-shape Hot Dipped Galvanized Pressure Locked Steel Grating1. Material: stainless steel plate, Low ... . Surface treatment: untreated, painted, galvanized, powder coated3. Steel grating standard:A) China: YB/T4001-1998 B) USA: ANSI ... /60/50G605/60/50 Hot Dip Galvanized Pressure Locked Steel Grating (Manufacturer)