FAQ
What standards do your steel gratings meet?
We are able to manufacture steel gratings with standards in different countries, such as YB/T4001.1-2007, ANSI/NAAMM (MBG531), BS4592 and JJS Standards.
How do you control the quality of your gratings?
To ensure high quality, we use advanced production lines and inspection machines. We strictly follow manufacturing requirements and have numerous certifications.
What specifications and types do you supply?
We can produce steel gratings of any specifications or types. Just let us know your dimensions, materials, color, and other requirements, and we'll customize them for you. We ensure they meet your needs.
What’s your raw material?
What’s the difference between plain grating and serrated grating?
The serrated gratings have better anti-slip performance but come at a higher price compared to regular gratings. They are widely used in petrochemical engineering.
What’s the surface treatment?
The surface treatment includes hot-dip galvanization, painting, electrostatic coating or non-treatment.
What does length and width exactly refer to?
In a grating, the length means the length of bearing bar while width means the length of cross bar. When placing your order, please provide clear dimensions to avoid any potential errors.
How do you calculate the area of each grating?
a. For regular shape grating, the area equals to length multiplied by width of grating, including the area of holes and notches.
b. For irregular shape grating, the area is that of the steel grating before cutting, instead of the area of irregular shape grating.
Why should we offer the structure drawing and detailed parameters of the work site?
This is to better serve your needs. Based on your structure drawing and parameters, we design and offer a grating perfectly suits your work site and ensure no extra cutting while usage. It greatly simplifies the installation work and saves your time. What’s more, according to the information you offer, we can recommend you the best suitable grating, which will save you time and money. We can also avoid the confusion between length and width mentioned in Q7 and prevent unnecessary economic loss for you.
How do you control the quality of the products leaving the factory?
Online Message