Product Overview This corrosion resistant stainless steel frame PVC stacking high speed folding door is built for washdown facilities, chemical plants and humid production areas where standard steel frames quickly rust. Stainless steel 304 guides, sealed drive components and a heavy-duty PVC stacking curtain keep the door reliable under frequent high-pressure cleaning, moisture and chemical exposure. Key Selling Points Stainless Steel Corrosion-Resistant Frame Stainless steel