... PVC.Manufacturing Techniques:1.Post: acid washing, electrostatic powder coating, high temperate baking in oven.2.Roof, Panel, ... Buckles, Fasteners, Foot plate: Aluminum material, Clean, powder coating.5. Screw: Stainless Screw. 2011 new products Products description ... rust cleaned by sand-blashing, and finishing by electro-static powder coating.Deck, stairs, bridgeswood inside with sponge and plastisol ...