Lanzhou Jiaotong University
Lanzhou Jianxing Commercial and Trading Co., Ltd.
Lanzhou Tech Biochemical Co., Ltd
southwest jiaotong university
Lanzhou Institute of Chemical Physics
Lanzhou Ocean Chemical Industry Science and Technology LTD.
Lanzhou boc chemical Co., Ltd
Lanzhou Xiangxin Industry & Trade Co.,Ltd.
lanzhou fly chem technology co., Ltd
Lanzhou Huanghe Zinc Product Co.,Ltd
Lanzhou SchiffChem Co.,Ltd
Lanzhou Weiri Bio-Engineering Co.,Ltd.
lanzhou aglichem co.,ltd
Lanzhou Jiayuan Bio-tech Co., Ltd
Lanzhou biological essence Industrial Co., Ltd.
lanzhou kejin biotechnology Co., Ltd
Lanzhou Schiffchem Co., Ltd.
Lanzhou Jinchuan Metal Materials Technology Co., Ltd.
Lanzhou Boc Chemical Co., Ltd.
Lanzhou Auxiliary Agent Plant
Lanzhou Chonchem Co., Ltd.