上海宝山千斤顶总厂经营范围包括：千斤顶、五金工具、电动工具加工；从事货物及技术的进出口业务等The business scope of Shanghai Baoshan Jack Factory includes: processing of jacks, hardware tools, and electric tools (with branch offices operating at the upper limit); Engaged in import and export business of goods and technology, etc