... us for anything you needed.1.size:MOQ is20Ton/Tons2.type:single slope, double slope, muti-slope ;single span,double-span ... or Variable cross-section5.bracing:X or V or other type bracing made from angle , round pipe etc.6.c or ... .earthquake load if have5.crane (if have): crane span, crane type, crane quantity, crane lift height, max lift capacity, max wheel ...