... :110-90mm-71mm designed upside and downside guide sleeve rod and tube chrome plated used for dump truck,middle lay,middle ... stock,can be loaded immediately,2.tube and rod all quenched and tempered and chrome plated,3.guide sleeve seal detail ... to our Shandong & Sichuan factofy for a better cooperation! multi stages telescopic hydraulic cylinder used for dump truck,engineer, agriculture machine