GB CHEMWIN , a professional supplier of chemicals, pharmaceuticals, and chemistry service, is headquartered in Hangzhou, China,neighbouring the hub of chemical and pharmaceutical industry. We are a young company, as a subsidiary of Zhejiang Guobang Pharmaceutical Co., Ltd. possessing our own labs, Quality assurance system,and managed by senior executives with rich experience in quality control, regulatory affairs and marketing for the highly-competitive pharma-chem business.

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