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Headquarter: Dyfenco Electronic Chemical Corp. 
TEL:+886-7-6160317  FAX:+886-7-6161639  Email:leadfree@dyfenco.com
China Factory- Forever Gold Metal Materials(D. G) Co., Ltd 
TEL:+86-769-85330095  FAX:+86-769-85330096  Email:earnmore@dyfenco.com
Suzhou Office- Suzhou Dyfenco Electronic Enterprise Co., Ltd 
TEL:+86-512-65641186  FAX:+86-512-65641187  Email:sz@dyfenco.com