... :GS(TUV) wooden playground equipment:1)Component:slide,deck,stairs,bridge,etc.2)Material(plastic): ... :rotational mould 3)Material(metal):use high-quality steel, phosphatized,rust cleaned,powder coated in electro-static, high-temperature baking finished ... :rotational mould 3)Material(metal):use high-quality steel , phosphatized,rust cleaned,powder coated in electro-static,high-temperature baking finished ...