... waterproof, flame retardant (DIN4102 B1, M2), and UV resistantroof cover and wall adopts 760g/sqm;5, Maximum allowed wind speed ... : 120km/h6, Optional accessories: wooden floor, glass door, glass wall, ABS solid wall ... ,steel panel wall sidewalls with PVC-clear window, ground anchors, rain gutters, decoration ceilings and inside curtain7, ...