Zone-based material plan for an 18,370㎡ prepared food purification workshop in Guigang, Guangxi. Uses 304 stainless-steel magnesium-oxide boards for high-corrosion areas, double color-steel sandwich panels for general zones, and stainless-steel + non-aging foam composite panels for insulation zones. Delivers food-grade hygiene, A‑grade fire resistance, corrosion resistance, energy savings, and HACCP compliance. Supplied by SAMZOON with ISO certifications and 20,000㎡/day production capacity.