• Shandong Qingyun Changxin Chemical Science-Tech Co., Ltd.

  Shandong Qingyun Changxin Chemical Science-Tech Co., Ltd. is specialized in manufacturing 1-Methyl-2-pyrrolidinone (NMP) and gamma-butyrolactone (GBL) series. Located Province, China, we enjoy convenient access to major transportation networks. Dedicated strict quality control ...

  Telephone：86-534-3868699Address：No. 1689, Donghuan Road, Qingyun County

• Haiyi Chemical Co,.Ltd

  we are specializing in the manufacture and export of the basis chemical raw materials. Our main products include the basis Inorganic and Organic Chemicals, Dye stuffs, and so on.

  Telephone：86 - 335 - 5317211Address：No.182 Gangcheng St Qinghuangdao Hebei China