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Li Yuanming
With many years of experience in synthetic lubricant process research at Sinopec Yiping Lubricant Company, he is a seasoned expert in the field of synthetic ester oils, both domestically and internationally. He has participated in the R&D and process optimization of numerous aviation‑grade synthetic ester lubricants, including 4109, 4106, and 4050, and currently oversees the process research and production of Derunbao synthetic lubricants.
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Hangzhou Derunbao Technology Co., Ltd.
7th–8th Floors, Building 1, No. 268 Chuangye Street, Qingshanhu Subdistrict, Lin’an District, Hangzhou City, Zhejiang Province
Zhejiang Derunbao New Materials Co., Ltd.
Postal Code: 313300
North side of Shenshui Road, Meixi Town, Anji County, Huzhou City, Zhejiang Province
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Phone: 0571-63786247 Company Address: Floors 7–8, Building 1, No. 268 Chuangye Street, Qingshanhu Subdistrict, Lin’an District, Hangzhou, Zhejiang Province