Ama-actuator e-Spring Return damper athuthukiselwe ukusetshenziswa kwe-air damper evamile, i-valve ejikelezayo namanye amadivaysi adinga umsebenzi ongaphumeleli.Ngesikhathi sokusebenza okuvamile, i-actuator yavula idivayisi.Esimeni lapho ugesi ucisha, i-actuator ibuyela endaweni yayo yasekuqaleni.
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