... 15years profession experience 3.ISO9011 4.lots expansion rubber bellow/bellows expansion rubber bellow/bellows1.flexible2.15years profession experience 3.ISO90114 ... NB,NBR,SBR,EPDM,Nylon Cord Fabric ,etc Diameter Size: DN20--6000mm.Usage:pipe inside media with: water,smoke,acid / alkali ... water,sea water,hot water,weak acid,etc.rubber bellow/bellows Package:Wooden case ,carbon box Contact us:Waiting we ...