S refers to structural steel

4 10 is the required yield strength.

G stands for high strength steel.

D refers to hot-dip galvanized materials.

Z pure zinc hot dip galvanizing

Can the weight of double-sided zinc plating reach 275g/m? However, there are few such high zinc layers on the market, and some futures may be needed.

You can contact each other when you have time.

DX5 1D stands for common galvanized sheet.

DX can be understood as "zinc plating"

5 1D is a common brand of steel plate, and there are also 5 1d 52d 53d and so on.

More can be found in my Yongshun Xiang Jizai blog.