Method necessities could have to have rubber or metal joints at unique pressure rankings. But metal joints commonly have increased pressure rankings than rubber joints’. They are the rubber and metal joints – temperature range, pressure, motion allowance, corrosion/chemical resistance abrasion resistance, installation needs, routine maintenance needs and lifespan; costs. https://metalvsrubberexpansionjoi14689.techionblog.com/39666469/the-best-side-of-ptfe-lined-expansion-joint