Chemical composition: -C: 0.10 -Mn: 0.50 -p: 0.020 -s: 0.035 -Ti: 0.025 Galvanized steel plate: Galvanized steel refers to the ordinary carbon construction steel after galvanized processing can effectively prevent steel corrosion and rust so as to prolong the service life of steel, including galvanized galvanized and hot dip galvanized. Generally used for building exterior walls, such as glass curtain wall, marble curtain wall, aluminum curtain wall to do columns and stress materials, or used for outdoor telecommunications tower, highway and other open-air construction steel known as galvanized steel, which galvanized: electric galvanized and hot dip galvanized. Material Q195, Q235 SGCC, SGCH,SGC340 SGC400 SGC440 SGC490 SGC570 SGHC SGH340 SGH400 SGH440 SGH490 SGH540 DX51D DX52D DX53D DX54D S220…