The registration address of polychan tech ltd. In shenzhen city is located at 39d, located in shenzhen city, on the pine streets of boang district, and located at zhong luang road in shenzhen city. The registration authority is shenzhen city market supervision authority, represented by the legal person liang sujiang. The activities include the general operation of plastics, gold decorations, hardware electronics, type i medical devices, medical equipment, minor accessories, small gifts, toys, cleaning-up daily items, clothing, cosmetics and hygiene supplies; nutritional health counselling services (without medical acts); commodity information counselling services; and the import and export of goods and technology. (the above do not contain laws, administrative regulations, state council decisions that require prior approval and prohibition of projects) and the licensed projects are: sale of aqueous resin. Sale of protective supplies and medical devices in categories ii and iii; development and sale of masks, handwashing fluids, disinfection fluids, thermometers, holsters, security doors, masks, goggles, disinfection powder, alcohol, rubber gloves, body thermostats. Development and marketing of nutritional health products。