Outdoor playground is also called outdoor playground set, playground, outdoor slide, amusement park slide, outdoor play equipment, wooden outdoor playground, all plastic outdoor playground etc. 1. Steel post, clamps, rails, and stairs cleaned by sand-blasting, then coated with phosphate solution, and finished with electro-static powder coating Plastic parts are made of LLDPE, finished with rotational molding technology, and some slides are made of fiberglass. 2. Rotational mold 3. Post: aluminum, galvanized and steel 4. Components: slides, roofs, decks, panels and ladders 5. Player age: 3-12 years old 6. Metals used as guardrail and handrail (galvanized or steel) 7. Deck, stair, bridge: plastic (rubber coated) or powder coated 8. Widely used in park, community, supermarkets, restaurant, school, residential communities and kindergartens 9. Design style: adopted the latest fashionable style with integrated functions of running, climbing, rolling, which will develop children's ability of balance, independent coordination and increase their self-protection awareness.