Is Shenzhen Hehan Technology a big factory?

Yes

According to the enterprise survey, Hehan Technology is committed to the R&D, manufacturing and sales of electronic atomization products, medical atomization products and chips. It has a strong industry elite team that has been deposited for about ten years, rich cooperation experience with international tobacco companies and pharmaceutical companies, and has a number of core technologies and patents. The company covers an area of about 30,000 square meters.