專利號 patent number: ZL.200610102198.X? ZL.200810054458.X? ZL.200820076128.6用電動跑車實現自動行走，根據施工現場和吊運材料的情況，可選3米、4.5米、6米、9米的梁長。適用于大型工程建筑，吊預制購件等。起重量可根據用戶要求定制。It has an electric motor, which can realize automatic electric moving and lifting materials. According to the construction site and material information, the beam length is optional. Is is applicable to large-scale construction, special materials, and so on. Lifting capacity can be customized according to requirements.?