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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): 15, 30, 40, 60, 80, 90mm etc, or according to client's request and 30, 40, 60mm are recommended, America standard is available. 3) Cross Bar Pitch (center to center): 30, 38, 50, 76, 100mm etc, or according to client's request and 50, 100mm are recommended, America standard is available.4) Material: Mild Steel (Low Carbon Steel) or Stainless Steel 5) Shape of bearing bars: F Plain styleS Serrated styleI I section style 6) Surface Treatment: G Hot dip galvanizedP PaintedU Untreated 7) Steel grating standards: A) China: YB/T4001-1998 B) USA: ANSI/NAAMM (MBG531-88) C) UK: BS4592-1987 D) Australia: AS1657-1985
I Bar Type Steel Grating
