outdoor amusement park: 1.high quality,good security 2.varied color, attractive appearance 3.OEM availible 4.TUV,CE, ... is more safe and more environmental protectable,also good in weather resistance.2.The platform use high strength cold-roll steel sheets ... mm,thickness 3mm),steel tube(diameter 25-60 mm,thickness 2 mm),all these pipes meet with the standard of BS1387 ...