outdoor playground 1.material:LLDPE,high-quality steel 2.certificate:ISO,GS TUV 3.good quality,competitive ... ( imported from SK or ICO), rotational mould. b. post: Aluminum, galvanized, steel post. Different material is available at your demand. c. Metals ... used as guardrail, handrail etc: Galvanized or steel. d. Deck, ...