... 2.certificate:ISO,GS TUV 3.good quality,competitive price outdoor playground,playground system,amusement park toy,playground equipment,combined slide ... . Metals used as guardrail, handrail etc: Galvanized or steel. d. Deck, stair, bridge: Plastisol (rubber coated) or powder coated.2)Dimension ... or restaurant, school, residential communities, and kindergartens, and so on. outdoor playground