標(biāo)準(zhǔn)系列工作級(jí)別為A3~A5，環(huán)境溫度為-20~40℃，相對(duì)濕度不大于85%，海拔不超過(guò)1000m，用于一般車間及倉(cāng)庫(kù)裝卸和搬運(yùn)重物，不適宜吊危險(xiǎn)品。 Standard classification group: A3~A5,circumstance:-20~40℃, humidity less than 85%，altitude less than 1000m, for loading and transiting in common plants and warehouses, but notavailable for lifting dangerous goods.
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