We are a leading professional manufacturer of high quality steelgrating for construction project at competitive price, located inNingbo near to Shanghai of China. Ningbo Lihong Steel Grating Co.,Ltd has approved ISO9001-2000 Quality Management System in 2001.There are three production lines in our company, and 75% ofproducts is exported to the worldwide with perfect quality. Thereare many regular grating customers in USA Houston, Ohio, Charttle,LA, MiddleEast, AUS, Europe and Southeast so on. We produce threekinds of steel gratings, they are Plain Style Steel Grating,Serrated Style Steel Grating and I Bar Type Steel Grating. They arewidely used in steel structure platforms, stair treads, sidewalks,drainages and well covers etc. We can design and manufacturestandard steel grating and in customized shapes per client'srequirements . 1) Bearing Bar (Load Bar) Specifications (mm): Thespecification of plain type and serrated type bearing bar is 20 x 3to 100 x 10;the specification of I-section type is 25 x 5 x 3, 32 x5 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 BarPitch (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, also be according toclient's requirement and 30, 40, 60mm are recommended, Americastandard is available 4) Material: Mild Steel (Low Carbon Steel) orStainless Steel 5) Surface Treatment: Untreated, Painting or Hotdip Galvanizing 6) Steel grating standards: A) China: YB/T4001-1998B) USA: ANSI/NAAMM (MBG531-88) C) UK: BS4592-1987 D) Australia:AS1657-1985 E) Japan: JJS. Contact: Mr. David Huang T