ladder icon. staircase and ladder icon line style. premium quality staircase drawing ladder concept fo

clambering climb climbing construction constructionequipment design down equipment exit factoryindustry high icon illustration industrial industry instrument job ladder laddericon ladderstair ladderstaircase ladderstep level line move object outline repair safety safetywork service sign stair staircase staircaseicon stairway step stepladder style success symbol tall tool way wooden work worker