galvanized steel stair treads

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galvanized steel stair treads

 

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 ISO********0 Quality Management System in ***1.  There are three production lines in our company, and *5% 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 *0 x 3 to **0 x *0;the specification of I-section type is *5 x 5 x 3, *2 x 5 x 3, *8 x 5 x 3, *0 x 5 x 3, *0 x 5 x 3, *0 x 7 x 4, *5 x 7 x 4, *0 x 7 x 4, *5 x 7 x 4, *0 x 7 x 4, *5 x 7 x 4, etc.

2) Bearing Bar Pitch (center to center):
*2.5, *5,*5, *0, *0.*6, *2.5, *4, *0, *1.*5, *5, *0, *0, *0.*2, *0, **0 mm etc, also be according to client's requirement and *0, *0, *0mm 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/T********8
B) USA: ANSI/NAAMM (MBG*****8)
C) UK: BS********7
D) Australia: AS********5
E) Japan: JJS.

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