Zhongkang cosmetic jar. Guangzhou Zhongkang Cosmetics Co., Ltd. is a company specializing in the production and processing of essential oil, medicated oil, body box, face box, cream, jade bath and other products, with a complete and scientific quality management system. Guangzhou Zhongkang Cosmetics Co., Ltd. has been recognized by the industry for its integrity, strength and product quality. Zhongkang cosmetic jar.