Fixed ladder

A fixed ladder is a vertical ladder mounted permanently to a structure. These ladders are primarily used to access roofs or other structures for industrial purposes. In the United States, these ladders are covered by OSHA and ANSI standards.

单词	Fixed ladder
释义	Fixed ladder 英语百科 Fixed ladder A fixed ladder is a vertical ladder mounted permanently to a structure. These ladders are primarily used to access roofs or other structures for industrial purposes. In the United States, these ladders are covered by OSHA and ANSI standards.
随便看	prostratigraphy Prostratin prostrating prostration Prostration,Heat prostrative prostrator prostrators prostratum Prostratus cyclobalanopsidis prostriate prostriates prostromelysin Prost sign prosty prostyler prostyle prostylest prostyle tetrastyle prostypus Prostějov prosubiculum prosuicide prosul Prosula