... & minimum spangle,oiled & dry,chromated,non-skin pass,skin pass7. Steel Grade: SGCC, SGCD, CS,FS,SS,DX51D+Z DX52D+Z ... paper inside, iron sheet wrapped outside, and bundled by iron strips 10. Application: light industry, civil usage and farming. It is ... the perfect building material in construction for making roofing tile, steel profiles for wall partition, T-bar, studs, fireproof door, air ...