... , reliable quality, 3,Certificate: GS,ISO9001:2000,TUV Outdoor playground facility 1. components Slides, tube slides, roofs, decks, panels, column, ... ) Upright column:galvanised steel pipe with diameter of 114 mm, wall thickness of 2.2 mm2) Platform:2.2 mm-thick ... community, restaurants, etc.6. The decks can use two kinds of material: 1) static spray ,2)surface coated polyurethane7. galvanized pipe ...