<跨度风格=“字体大小：12磅;”> <强>看台和看台 提供座位通常具有室内和室外的旁观者事件几个小时的时间。  Bleachers are terraced rows of bench seats with foot rests.  Grandstands are bleachers or individual seating systems on an elevated platform.  Many grandstand and bleacher systems can be easily relocated if purchased, or rented for specific events.  Permanent installations at fixed interior building locations can be installed with telescopic features, to allow for improved storage and floor cleaning when not in use.    Wood, aluminum and plastics are the most common material selections for bleacher and grandstand seating.