The legal entity, represented by sun xio-yao, has a registered address of 100 metres north of the five-mile kiln bridge in salt hill county. The legal entity includes the manufacture and sale of carbon steel, alloy steel, stainless steel pipes, pipes, plumbing equipment and accessories, hangars, plant parts, concrete fabricators, piping pipes, machinery bed attachments, valves, fastenings, draining pipes, deductions and scaffolds, and grinding protections. (a project subject to legal authorization may only be operated with the approval of the relevant department; a general project may be operated on its own by law)