Lahkawng lang-}}acting cylinder a galai shai ai lam hpe nbung npawt kaw nna shadut ai, nbung n-gun hpe hpaw da ai, n-gun n rawng ai hte shara hpe tawn da ai;
Single- a switch action gaw hpaw da ai action hpe nbung hte galaw ai rai nna, makau kaw galaw ai lam gaw spring bai nhtang wa ai lam rai nga ai: Single-acting: shingra tara hku hpaw ai type(N/O) hte shingra tara hku pat da ai amyu(N/C) rai nga ai. Normally hpaw ai amyu: Nbung n-gun shayawm ai, hpaw ai; Normally pat da ai amyu: nbung pru wa ai, pat da ai.
