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Unit: Yantai Tongyong Energy-saving Equipment Co., Ltd. Unit: Yantai Tongyong Air Cap Co., Ltd.
Add: 14 Kuiyu Rd., Zhifu, Yantai, Shandong, China Add: 12 Kuiyu Rd., Zhifu, Yantai, Shandong, China
Tel：0535-6013258 6010308 Fax：0535-6011208 Tel：0535-6678583 Fax：0535-6678583
P.C.：264004 E-mail：tongyong258@163.com P.C.：264004 E-mail：zhangdq158@163.com |
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