First, confirm the product, and select the symmetrical heating wire to operate. When threading, the heating wire shall not be scratched, looped or knotted, and the threading rod shall not pierce the non-woven fabric. Products should be bundled according to product specifications and stacked separately according to line number, specification and model. The business scope includes the production and processing of rectifiers and inductors, transmission and distribution and control equipment, electronic components, connectors, fuses, electronic equipment, import and export of goods and technology.