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The specification of plain type and serrated type bearing bar is20 x 3 to 100 x10;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 7x 4, 70 x 7 x 4, 75 x 7 x 4, etc.
2) Bearing Bar Pitch (center to center):
12.5, 15,25, 30, 30.16,32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, alsobe according to client''s requirement and 30, 40, 60mm arerecommended,
America standard is available <1'''' x3/16'''', 1 1/4'''' x 3/16'''', 1-1/2'''' x 3/16'''', 1'''' x1/4'''', 1-1/4'''' x 1/4'''', 1 1/2'''' x 1/4''''(19-w-4) and soon.>
4) Material:
Mild Steel (Low CarbonSteel) or Stainless Steel
5)Surface Treatment:
Untreated, Painting or Hot dip Galvanizing
6)Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.
galvanized steel Grating
