... used in park, amusement ground, district, Kindergarten, Supermarket, Garden plastic climbing wall: Product Instruction: The products are used in park, amusement ground ... - 12 years old1)-Material of Post: standard steel pipe, galvanized pipe, Aluminum alloy pipe, diameter is 114cm,thickness is 2.02.53.0mm ... to cast shape at one time, surface is polished by machine, gush mould by POLYESTEY/TCICSYSTEM.