Nezve EHT CRANS iyi ndeyemhando yemhando yereverwe kusimudza midziyo yekambani yedu, imwe ndeyemhando mbiri dzekusunungura, Iwo maviri emahara-toni-toni Kushandisa zvazvino zvinyorwa zvekuverenga, sevencrene kaviri girasi pamusoro pegrane inogona kugadziridza mauto ehuremu. Sevencrene Deart Crane Crane yakaderedza uremu pamavhiri, kuchengetedza mari yekuchengetedza zvitsva zvinotsigira, uye kuwedzera kusimudza kugona kwezvivakwa zviripo.
Gumi Gadzira Gungwa EHO CRAENS dzinogona kupihwa kusangana nekirasi a, b, c, d, d, ne cmaa, ine masaiti anosvika mazana mashanu, neinosvika mazana maviri emamita uye yakareba. Double-girder pamusoro mamambi anoumbwa akaumbwa nemabhiriji maviri akabatanidzwa kune iyo track Nekuti venyva vanogona kuiswa pakati kana pamusoro peBligge Girder, imwezve 18-36 yekukwira kumusoro inogona kuwanikwa uchishandisa kaviri girders bridge crames. Kaviri-girder crames kazhinji inoda kukwira kumusoro pamusoro pemakonzo wechidimbu
Double Girder Cranes inowanzo shandiswa kana basa zvinodiwa naD + (zvakanyanya basa rekutya) Hook-yakakwira-girazi-girder yekufamba-famba-pamusoro pemamiriro ezvinhu avo, anowanzo shandiswa mumachina zvitoro, machira, uye kurongedza mayadhi ekusimudza masisitimu anosimudza. Bridge-Kumhanya Mechanisms maviri akazvimirira ekutyaira masisitimu anoshandiswa kutyaira crane kufamba kwega kwega.