Core features: It is divided into pure manual drive and electric drive. The steel structure is mainly flexible, but the portability of disassembly and assembly is usually not as good as the aluminum alloy type. · Typical load-bearing capacity: 1 ton-3 tons (wide range). · Typical span/height: Span and height can be customized. · Applicable scenarios: operations that require frequent movement and fixed-point lifting in warehouses and workshops; among them, the electric type is suitable for scenarios with high frequency of use and the pursuit of efficiency.