... ,820,850,900,840 etc 4.Usage: Roofing and Wall Product Specification:Standard: GB/T12754-2006Base ... mmWidth: 800--1300 mmBase metal: Color coated steel coilsPattern: 760,820,840,850,900 etcWidth: ... samplesPainting: PE,SMP,HDP,PVDFApplication: Structural usage,roofing,commercial usage,household appliance,industry,family etc.Characterized ... ,Eastern Asia and other countries. Corrugated Roofing Steel Plate