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http://www.hygrating.com/news/company-new/aluminum-and-steel-grating.html

Bar grating is designed for many applications. Bar grating is a strong choice for projects ranging from trenches and stair treads to decking and flooring. Used as metal grates, bar grating covers open areas in flooring that require light, liquid, air, heat,sound to pass and anti-corrosion between flooring levels. Meanwhile, many industrial companies put our aluminum grating to use as floor grating or catwalk for these reasons and more. For instance, our aluminum stair tread grating provides extra grip with front fender checker plate when walking, and our I-bar and T-bar grating make it possible for maximum rollability when a wheelchair, hand truck, cart or vehicle is in use.

At HY industry, our various types of aluminum grating and steel grating make up our bar grating product line. Here we introduce the difference between aluminum and steel grating and also help you to decide which to use in different project conditions. Aluminum Bar Grating is a good choice when a lightweight, corrosion resistant material is desired. You can choose from many options such as flush top, rectangular bar, plank, & I-bar. Aluminum grate flooring is available in the swage locked, pressure locked and dove tail.

Carbon Steel Bar Grating is a nice choice when your project requires a strong material and you are not going to expose the grating to an expressly corrosive environment. You can choose from plain or serrated surfaces, galvanized or painted and light or heavy duty grating.
Stainless Steel Bar Grating provides a superior corrosive & oxidation resistant material in a material stronger than aluminum.It is popular in many areas and also expensive.

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