... 40mm to 2000mm. The detailed specifications you can find in the following chart. Its functions have small volume, ... its good integral function, rubber expansion joint is widely used in water supply and drainage, chemical industry, construction, petroleum, ... 25023025141515°30024525141515°35025525151515°40025525151512°45025525152212°50025525162212°60026025162212° best-selling in America rubber joint