Greater spring charges than rubber expansion joints. Gives restricted flexibility in comparison with rubber, which could restrict motion occasionally. a. Expansion joint rubber flanges have to be in contact with a flat floor. Normal one/16″ raised encounter is OK. Unacceptable depressions or protrusions are regular of victaulic or equivalent flanges. https://rivergaung.blogrenanda.com/46182513/new-step-by-step-map-for-stainless-steel-bellows-expansion-joint