galvanized fence steel grating for secutrity fence
Ningbo Lihongyuan Steel Grating Co., Ltd is a leading professional manufacturer of steel grating, stair treads, handrails, trench grating, grating clips, cable trays in China and 75% of grating is regularly exported to USA, AUS, Kuwait, Chile, Singapre, Indonesia, Africa, UK and so on. Our grating always have a good reputation in the world.
We produce over three kinds of steel gratings, they are Plain Steel Grating, Serrated Steel Grating and I Bar 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) Size (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 4mm, etc.
2) Bearing/ Load Bar Pitch (center to center):
12.5, 15, 25, 30, 30.16, 31, 32.5, 33, 34, 40, 41.25, 43, 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 <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4) and so on. >
3. Cross Bar Pitch (center to center):
38, 40, 50, 60, 76, 80, 100, 135mm and so on.
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.
ISO 9001-2008 & SGS COMPANY, GRATING SPECIALIST, YOUR GRATING SOLUTIONS! MR. DAVID
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