ʻO kāna kumu hana, ʻo ia i loko o ka puʻupuʻu kaʻa, ua hoʻonohonoho ʻia ka ea booster i ka hydraulic control mechanism, i haku ʻia me kahi cylinder hydraulic, kahi hale, kahi piston mana a me kahi valve control pneumatic.Hoʻokaʻawale ia i ka hoʻonohonoho like o nā kumu ea i hoʻopaʻa ʻia me ka pneumatic brake a me nā mea ʻē aʻe ...
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