ADDRESS:Room 415, Building 7, Beili East District, Donghua City, Dongcheng District, Beijing | BUSINESS SCOPE: | Technical consultation, technical services, technology transfer, technology development; professional contracting, general construction contracting, labor subcontracting; product design; sales of mechanical equipment, hardware and electrical appliances, b | E-MAIL: | cym4598@163.com;cym8888@dingtalk.com;cym@ytbg.net;zhjcpa1962@vip.sina.com
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