"design"=>"barrel","structure"=>"tubular"
"design"=>"barrel","structure"=>"tubular"
"design"=>"barrel","structure"=>"tubular"
"design"=>"barrel","structure"=>"tubular"
"design"=>"barrel","structure"=>"tubular"
"design"=>"barrel","structure"=>"tubular"
"design"=>"barrel","structure"=>"tubular","line_attachment"=>"anchor"
"design"=>"barrel","structure"=>"tubular"