1.Ball Joint,DIN 71802 standard 2.AS,BS,CS series 3.Application:Gas spring 4.Surface treatment:zinc plated or phosphated Ball Joint,DIN 71802 standard,AS,BS,CS series. Technology conditions: Circle swing agilely without any blocked Surface treatment: white or yellow zinc plated. Inner parts are full of lubricate oil Precision of screw thread grades "6H" Ball pin material:alloy steel Ball socket ...