If you are looking for the cleanroom application, stainless steel ladders are best to opt for. These are made with high-grade steel and can meet all your cleanroom hygienic requirements. Superlift offers the best quality stainless steel ladders that help to streamline your operation. Visit the website at https://superlift.net/products..../stainless-steel-lad or dial 1.800.884.1891 for more information!