1, Yan-layer blunt needle is a well-known blunt needle brand in China, and the institutional doctors have a good injection experience after using it, adopting TW thin-wall technology.

2. Heyatang focuses on the research and development and production of plastic and cosmetic medical devices, focusing on three types of active and passive medical devices, and introducing leading products of plastic and cosmetic medical devices from Japan, South Korea and Europe and America.

3. Ming 'ankang blunt needle medical disposable needle was slightly trimmed and filled with hyaluronic acid.