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Headquarters address: Beijing chaoyang district court, 9, 93 jianguo 6 layer Production base address: Beijing daxing industrial development zone, Beijing instrument meter base sheng fang road After-sales service special line: + 86-10-60290321 Sales line: +86-10-60250410/+86-10-60251037 Fax: + 86-10-60250420 mail editor: 100022
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