Is there any imported rat nerve growth factor in China?

At present, the commonly used ones are Xiamen Beidadao Bioengineering Co., Ltd. Enjingfu 18μg(9000AU) Wuhan Haite Biopharmaceutical Co., Ltd. Jinlujie 20μg(9000AU) Shutaishen (Beijing) Pharmaceutical Co., Ltd. Su Taisheng 30μg( 15000AU).