Technical Details: DIA:100MM STROKE:68MM AIR:M16*1.5 HYD:M14*1.5 .If you need this product and find me,If you don't want to waste your time and money,please contact with me in time ! .Shaoxing City Gangjie Automobile Parts Co.,Ltd is an auto parts mufacturer which specialized in researching,developing and selling various of auto spare parts for both Original Equipment Manufacturer(OEM) and After-Market(AM). The main products(auto valves,spring brake chamber,slack adjuster and clutch servo) for truck/bus/trailer/tractor( Mercedes /Volvo/Scania/DAF/Iveco/Man/Renault/Kamaz/Neoplan/Steyer/Leyland/general truck /Hino/Isuzu/Mitsubishi and so on