General projects:

Manufacturing of springs; Sales of springs; Manufacturing of ordinary valves and cocks (excluding special equipment manufacturing); Manufacturing of construction engineering machinery; Manufacturing of hardware products; Manufacturing of power electronic components; Manufacturing of metal materials; Manufacturing of general parts; Processing of mechanical parts and components; Sales of valves and cocks; Sales of construction engineering machinery; Retail sales of hardware products; Wholesale sales of hardware products; Sales of mechanical parts and components; Sales of advanced power electronic devices; Sales of metal materials; Import and export of goods; Import and export of technologies.

(Except for projects subject to approval in accordance with the law, the company shall independently carry out business activities in accordance with the business license. )