Shanghai Haohai Biological Technology Co., Ltd is a high-technology enterprise which engages in biomaterial products research, development, manufacture and marketing business. The workshop in Songjiang has passed GMP standard. Its main product is the injecting gel of medical Sodium Hyaluronate(HA-Na) which is a new biomaterial with wide utility, and a series of which products can be used as visco-elastic stuffing of ophthalmic surgery operation, osteoarticular lubricant, anti-adhesion preparation during or post operation, and gynaecology operation, coherence agent to promote wound healing, releasing preparation to control drug release, and filling for cosmetic surgery.