Black steel grating

Black steel grating Products Description: 1) Bearing Bar (Load Bar) Specifications (mm): The specification of plain type and serrated type bearing bar is 20 x 2 to 100 x 10;the specification of I-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.

2) Bearing Bar Pitch (center to center): 12.5 to 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available. 3) Cross Bar Pitch (center to center): from18.5 to 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.

4) Material: Mild Steel (Low Carbon Steel) or Stainless Steel 5) Surface Treatment: Untreated, Painting or Hot Dipped Galvanizing 6) Steel grating standards: A) China: YB/T4001-1998 B) U.S.A.: ANSI/NAAMM (MBG531-88) C) U.K.: BS4592-1987 D) Australia: AS1657-1985 E) Japan: JJS 7) Hot Dipped Galvanizing Standards: A) China: YB/T 13912-2002 B) U.S.A.:ASTM A123