A minimalist vector illustration of a red and white Korean workplace safety sign, showing a worker returning a ladder to a storage rack with text instructions.

A clean workplace safety sign poster. White background with red and black colors. A simple vector icon of a worker returning a ladder to a storage rack. Bold Korean text at the top: "사다리 사용 후 제자리에!" Smaller text below: "사용 후 반드시 원래 위치에 갖다 놓으세요" Industrial safety sign style, minimalist vector design, high contrast, easy to read from distance, square poster layout. See more