Dampers Dampers1,usage:Suitable for seat, chair, fitness equipment,medical device etc2, Material: Steel3. Rod dia: 12mm4,damper force:60kg5,tube dia;30mm6, ... gas springs with body dia. From 15~52mm and pressure force from 30~10000N. We can customize any gas springs as ... provided the extended length, stroke and pressure force information. Welcome to your kind contact with idea, drawing, ...