专利号 patent number: ZL.200610102198.X  ZL.200810054458.X  ZL.200820076128.6用电动跑车实现自动行走，根据施工现场和吊运材料的情况，可选3米、4.5米、6米、9米的梁长。适用于大型工程建筑，吊预制购件等。起重量可根据用户要求定制。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.