... supply all kinds of steel structures, steel bulding, metal building, modular house, steel frame for warehouse, workshop, garage etc, steel beams, ... is 800m2, width X length X eave height, roof slope2.type:single slope, double slope, muti slope ;single span,double-span ,Multi-span,single ... c or z purlin,..size from C120~C320,Z100~Z2007.roof and wall panel:single colorfull corrugated steel sheet0.326~0 ...