... pitch:30,40,60mm 3.Cross Bar pitch:50,100mm 4.Hot-dipped galvanized ,Painted 1. Bearing Bar / Load ... standard is also available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', ... 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4), (11-w-4), (8-w-4) and so on.>3 ... requirement and 50, 100mm are recommended, America standard is available.4) Material:Mild Steel / Low Carbon Steel or Stainless Steel5) ...