... joints, also known as rubber expansion joints, are flexible pipe connectors made from natural or synthetic elastomers in which special ... EPDM,Nylon Cord Fabric ,etcName: flexible/expansion rubber joints/ pipe joint, pipe connectorFlange: galvanised iron, cast iron,Q235,304,etc.Standard: ... JIS,GB,ANSI,BT,etcSize: DN20--6000mm.Usage:pipe inside media with: water,smoke,acid / alkali / sewage ...