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.
Hot DIP galvanized steel grating has three kinds of steel gratings, they are Plain Style Steel Grating, Serrated Style Steel Grating and IÂ 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 <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):Â
  38.1, 40, 50, 60, 76, 80, 90, 100, 101.6, 102, 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.
| No. | Item | Detailed Description |
| 1 | Bearing Bar | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc; IÂ bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standard: 1' 'Â x3/16' 'Â , 1Â 1/4' 'Â x3/16' 'Â , 1Â 1/2' 'Â x3/16' 'Â , 1' 'Â x1/4' 'Â , 1Â 1/4' 'Â x1/4' 'Â , 1Â 1/2' 'Â x1/4' 'Â , 1' 'Â x1/8' 'Â , 1Â 1/4' 'Â x1/8' 'Â , 1Â 1/2' 'Â x1/8' 'Â etc |
| 2 | Bearing Bar Pitch | 12.5, 15, 20, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc |
| 3 | Twisted Cross Bar Pitch | 38.1, 40 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc                                                   |
| 4 | Steel  Grade | ASTM A36, A1011, A569, Q235, S235JR, S275JR, SS304, Mild steel & Low carbon steel, etc |
| 5 | Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating   |
| 6 | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar                                                         |
| 7 | Grating Standard | China: YB/T 4001.1-2007,   USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987,   Australia: AS1657-1985, Japan: JIS                                               |
**************************************************************
Contact Information:
Sales Director: David Huang
Mobile: 0086 137 57445098
 Office Call:  0086 574 88073967
FAX: 0086 574 88073962
**************************************************************
Â
Yixing Jinke Optical Instrument Co., Ltd. is a high-tech manufacturer committed to research, development and manufacturing of high-quality spectral consumables. With 50 years of experience in research, development and manufacturing, our products include: glass, Quartz Cuvettes, flow cell, Lens, reflector, filter, etc.
We have been continuously improving the company's R&D and preparation capabilities, optimizing the management system, and helping customers to continuously improve their product competitiveness. Our strategic partners cover chemical, pharmaceutical, biological, medical in vitro diagnosis, aerospace, communications, food, materials, environment, agriculture, inspection and quarantine and other fields.
As a spectrum accessories manufacturer with strong technical capabilities in China, Jingke Optics will try its best to provide more high-quality and convenient products and services for the majority of scientific researchers and instrument manufacturers, and work with you to create a better future!
Optical Elements,Diffraction Element,Diffractive Element,Diffractive Optical Element
Yixing Jingke Optical Instruments Co.,Ltd. , https://www.jkgxcn.com