... .flater floor use Q235,thicker ≥2.5mm,punching of cold-rolled sheet (according with GB/T700-1988) 3 ... is equal or greater than 2.5mm,punching of cold-rolled sheet (according with GB/T700-1988) ... consist slide ,roofs .bridge ,door , window,drillrange of applicationpark ,supermarket .shool,village and so on if ... "Jiangtai" brand.·Our quality goal: keep ahead of the same industry and let products speak,make ...