... parts.Stroke of 280mm, speed of 375rpm, piston road diameter of 70mm, rated piston rod load of 120 KN.2,Model 60/0 ... parts.Stroke of 280mm, speed of 375rpm, piston road diameter of 85mm, rated piston rod load of 220 KN.3,Model M-21 ... .2,Stroke of 280mm, speed of 375rpm, piston road diameter of 70mm, rated piston rod load of 120 KN.http://www.sinogastech.com ...