The surface layer: wear-resistant layer Compared with solid wood flooring, it has the wear resistance, flame resistance PRODUCT: HOT-DIP GALVANIZED STEEL SHEETS/COILS SIZE: 0.12MM-0.8MM*500MM-1250MMZINCOATING:60-180GSMSPANGLE: O/MIN/REGULAR AND BIG SPANGLESSURFACE TREATMENT:CHROMATE,NON-OILED,MILL EDGE,LEVELLED,FINISHQUALITY: SGCC,Q195,Q235,DX51DSTANDARD: GB/T,DIN,EN,ASTM,JIS OR AS PER YOUR ...