Chengdu Puruifa Pharmaceutical R&D Co., Ltd
Chengdu Puruifa Pharmaceutical R&D Co., Ltd. is an international technology enterprise that integrates research and development with production. Mainly engaged in the production, customization, and process development of high-purity Chinese medicine
Introduction
Chengdu Puruifa Pharmaceutical R&D Co., Ltd. is an international technology enterprise that integrates research and development with production. Mainly engaged in the production, customization, and process development of high-purity Chinese medicine chemical components, Chinese medicine reference standards, high-quality extracts, natural product intermediates for new drug research and development, drug impurities, and fine chemicals.

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Having formerly been the High-Grade Steel Division of the Thyssen Group, EZM Edelstahlzieherei Mark, or EZM for short, has been an independent company of medium size and structure since 1996. This independence gave EZM more room to manoeuvre, while t
Thieme publishes highly evaluated information about synthetic and general chemistry for professional chemists and advanced students since 1909. Thieme Chemistry is part of the privately owned Thieme Publishing Group. We sell a full range of products: