Ningbo Lihong Steel Grating Co., Ltd.
We are a leading professional manufacturer of high quality steel
grating for construction project at competitive price, located in
Ningbo near to Shanghai of China. Ningbo Lihong Steel Grating Co.,
Ltd has approved ISO9001-2008 Quality Management System in 2001.
There are three production lines in our company, and 75% of
products is exported to the worldwide with perfect quality. There
are many regular grating customers in USA Houston, Ohio, Charttle,
LA, MiddleEast, AUS, Europe and Southeast so on.
This company is specialized in manufacture and exports all kinds of
steel gratings with the best quality, competitive price and faster
delivery time. Such as steel mill black and hot dip Galvanizing and
stainless grating flooring walkway, platform and steel structures,
stair tread, well cover, trench cover, compound gratings, storage
shelves, ladder, fences and handrail so on for construction
project, oil project, seaport, power plant, water plant, defense
project, chemical factory and so on.
We produce three kinds of steel gratings, they are Plain Style
Steel Grating, Serrated Style Steel Grating and I Bar Type Steel
Grating. They are widely used in steel structure platforms, stair
treads, sidewalks, drainages and well covers etc. We can design and
manufacture standard steel grating and in customized shapes per
client's requirements.
1) Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 20
x 3 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, 15, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32,
80, 100 mm etc, also be according to client's requirement and 30,
40, 60mm are recommended,
America standard is available
4) Material:
Mild Steel (Low Carbon Steel) 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.
