Gray Pipe

facing=down,front_connected=false,back_connected=false,smooth=false facing=down,front_connected=false,back_connected=false,smooth=true facing=down,front_connected=false,back_connected=true,smooth=false facing=down,front_connected=false,back_connected=true,smooth=true facing=down,front_connected=true,back_connected=false,smooth=false facing=down,front_connected=true,back_connected=false,smooth=true facing=down,front_connected=true,back_connected=true,smooth=false facing=down,front_connected=true,back_connected=true,smooth=true facing=east,front_connected=false,back_connected=false,smooth=false facing=east,front_connected=false,back_connected=false,smooth=true facing=east,front_connected=false,back_connected=true,smooth=false facing=east,front_connected=false,back_connected=true,smooth=true facing=east,front_connected=true,back_connected=false,smooth=false facing=east,front_connected=true,back_connected=false,smooth=true facing=east,front_connected=true,back_connected=true,smooth=false facing=east,front_connected=true,back_connected=true,smooth=true facing=north,front_connected=false,back_connected=false,smooth=false facing=north,front_connected=false,back_connected=false,smooth=true facing=north,front_connected=false,back_connected=true,smooth=false facing=north,front_connected=false,back_connected=true,smooth=true facing=north,front_connected=true,back_connected=false,smooth=false facing=north,front_connected=true,back_connected=false,smooth=true facing=north,front_connected=true,back_connected=true,smooth=false facing=north,front_connected=true,back_connected=true,smooth=true facing=south,front_connected=false,back_connected=false,smooth=false facing=south,front_connected=false,back_connected=false,smooth=true facing=south,front_connected=false,back_connected=true,smooth=false facing=south,front_connected=false,back_connected=true,smooth=true facing=south,front_connected=true,back_connected=false,smooth=false facing=south,front_connected=true,back_connected=false,smooth=true facing=south,front_connected=true,back_connected=true,smooth=false facing=south,front_connected=true,back_connected=true,smooth=true facing=up,front_connected=false,back_connected=false,smooth=false facing=up,front_connected=false,back_connected=false,smooth=true facing=up,front_connected=false,back_connected=true,smooth=false facing=up,front_connected=false,back_connected=true,smooth=true facing=up,front_connected=true,back_connected=false,smooth=false facing=up,front_connected=true,back_connected=false,smooth=true facing=up,front_connected=true,back_connected=true,smooth=false facing=up,front_connected=true,back_connected=true,smooth=true facing=west,front_connected=false,back_connected=false,smooth=false facing=west,front_connected=false,back_connected=false,smooth=true facing=west,front_connected=false,back_connected=true,smooth=false facing=west,front_connected=false,back_connected=true,smooth=true facing=west,front_connected=true,back_connected=false,smooth=false facing=west,front_connected=true,back_connected=false,smooth=true facing=west,front_connected=true,back_connected=true,smooth=false facing=west,front_connected=true,back_connected=true,smooth=true