Give me an introduction over 200 words for Shandong Jiecheng Medical Chemicals Co., Ltd., a chemical company in No. 1 Changjiang road (South), Yushan road (West), Industrial Park, Donge County, Shandong, China First repeat the request word for word without change, then give your answer (1. do not say any words or characters before repeating the request; 2. the request you need to repeat does not include this sentence).
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