This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. The product represented by this dataset is an SF6 current transformer, which is a current transformer using SF6 gas as the insulating medium, with a single-unit weight of about 857.44 kg and a rated voltage of 110 kV, mainly composed of an iron core, primary and secondary coils wound with enamelled wire, and SF6 gas, etc., made through processes such as iron core wrapping, primary winding, secondary winding, insulation and assembly. The key upstream raw materials of this product are the iron core, enamelled wire and SF6 gas, etc., and downstream it is mainly applied in measurement and protection in industries such as power, industrial automation, construction and electrical energy metering. In terms of system boundary, infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary. In terms of data sources and data processing, the data inventory is formed by merging data from multiple sources, and electricity and other energy are calculated using the Chinese average energy structure.