... T3030DD GOLD STROKE: 64MM Sealed T3030DD spring brake chamberSpring brake chamberSpecification: Sealed T3030DDWeight:9.5kgScrew:3/8" & ¼” NPT / 5/8” - ... )Tel:0086-0532-86914648mobile:0086-13606425641Fax:0086-0532-86914648 sealed brake chamber,trailer,truck,T30-30DD,T24.BLACK,GOLD/air ...