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stock code：300440

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yunda technology official account

yunda technology service official account

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address

no.11 xinda road, west park, high-tech zone, chengdu, sichuan province
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telephone

028-8283 9999（contact number）

028-8283 9998（quality complaints）

028-8289 1080（24-hour service hotline）
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e-mail

mkt&strategy@yunda-tec.com

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