Iityhubhu ezihlonitshiweyo zibonakaliswa ngokuchaneka kwazo okuphezulu kunye nomphezulu ogudileyo wangaphakathi. Zenziwe kwintsimbi ephezulu, ehamba ngenkqubo engqongqo yokuhombisa ukufezekisa ukunyamezela okuchanekileyo. Le nkqubo ayilungisi nje kuphela indawo yangaphakathi kodwa iphinda ikhulise iimpawu ze-tube mechanical, eyenza ibe yinto ehlala ixesha elide kwaye ixhathise uxinzelelo oluphezulu kunye nokugqoka. Iityhubhu ezihlonitshiweyo zisetyenziswa ngokubanzi ekwenzeni iisilinda ze-hydraulic, apho zisebenza njenge-cylinder barrel, evumela ukuba ipiston ihambe kakuhle ngaphakathi kwabo.
Bhala umyalezo wakho apha kwaye uwuthumele kuthi