... truck,heavy-duty truck,trailer,specail-purpose vehicle,etc. Competitive service brake chamber TYPE: 24/30STROKE: 65/65PORT THREAD: M16X1.5BOLT ... sizes, means we have a design suitable for all typical service and parking force requirements whether for cam, wedge or disc ... , ,SAOS,RVI,PEGASO,SCANIA,IKARBUS,TAM,HOWO,MAN,DENNIE,RENAULT. service brake chamber