Product namesteel structure prefabricated housesMain ComponentsSurface TreatmentBaseCement and steel foundation boltsHot dip galvanize1.Standard: JIS,Website:://.cnhousesteel.com, DIN, ASTM B695-2000Main frameH beam2.Hot dip galvanizing hole cutting good looking on surface ofPurlinC or z purlin: Size from C120~C320, Z100~Z203.Galvanizing process:   Steel structural components →Degreasing →Rinsing→ Pickling →Rinsing → Fluxing → Galvanizing →Quenching → (Passivation) → Inspecting →Finished ProductBracingX-type or other type bracing made from angle, round pipe, etcBoltPlain bolt and High-strength boltPaint1.Primer paint one coat 20-30 umRoof