compound grating is made by grating as keel, checkered steel plate as surface to welded into a overall product. After hot galvanization, the compound grating will generate shape distortion due to heating power , particularly choose larger type grating, the leveling is more difficult. Please pay more attention to the selection .

Compound grating often use series 3 for bottom, but also can use Series 1 or Series 2; checkered steel plate often use 3mm thick, it can use 4mm, 5mm, 6mm plate .
Standard compound grating specifications (it is the finished weight after galvanization in the table):

Certainly can also use thicker checkered steel plate or other grating, The table is only the most commonly used standard compound grating. We also can produce according to customer's requirements