Hot Dip Galvanized Steel Grate 1. Bearing bar pitch:30,40, ... pitch: 50,100mm 3.Type:Plain,Serrated,I-shape Hot Dipped Galvanized Steel Grating1. Material: stainless steel plate, Low ... carbon steel sheet2. Surface treatment: untreated, painted, galvanized, powder coated3. Steel grating standard:A) China: YB/T4001 ... 60/50G505/60/50G555/60/50G605/60/50 Hot Dip Galvanized Steel Grate (Manufacturer)