以下为句子列表：
英文: SACHEM is a global chemical company with over 50 years of experience in the supply of high-purity and precision chemical products and services to the electronics, catalyst, polymer, biotechnology, pharmaceuticals, paper and energy markets.
中文: 主要经营范围：电子产品，催化剂，聚合物，药品生物技术和能源装置市场提供高纯度和精密化工产品及服务。
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