Hebei guanlang Biotechnology Co., Ltd. It is a scientific and technological company with independent intellectual property rights, engaged in the development, production and operation of chemical products. The company has long been cooperating with the University of Pittsburgh in the United States. It is a comprehensive enterprise integrating scientific and Technological Development and mass production. It is a professional R & D and production factory of methylamine hydrochloride series products in Hebei Province.

Hebei guanlang Biotechnology Co., Ltd. It is a scientific and technological company with independent intellectual property rights, engaged in the development, production and operation of chemical products. The company has long been cooperating with the University of Pittsburgh in the United States. It is a comprehensive enterprise integrating scientific and Technological Development and mass production. It is a professional R & D and production factory of methylamine hydrochloride series products in Hebei Province.

Hebei guanlang Biotechnology Co., Ltd. It is a scientific and technological company with independent intellectual property rights, engaged in the development, production and operation of chemical products. The company has long been cooperating with the University of Pittsburgh in the United States. It is a comprehensive enterprise integrating scientific and Technological Development and mass production. It is a professional R & D and production factory of methylamine hydrochloride series products in Hebei Province.

Hebei guanlang Biotechnology Co., Ltd. It is a scientific and technological company with independent intellectual property rights, engaged in the development, production and operation of chemical products. The company has long been cooperating with the University of Pittsburgh in the United States. It is a comprehensive enterprise integrating scientific and Technological Development and mass production. It is a professional R & D and production factory of methylamine hydrochloride series products in Hebei Province.