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Designs of metal outer diameter with inner case
 B301 |
 B302 |
 B303 |
 B304 |
 B305 |
 B321 |
 B322 |
< B323 |
 B331 |
 B332 |
 B333 |
 B371 |
 B372 |
 B373 |
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| Address: | 506 No.45-16 Ah Li St, Cheng Ping Village, Fu Hsin, Changhwa, TAIWAN R.O.C. |
| Tel: | 886-4-7707930-1 |
| Fax: | 886-4-7700687 |
| E-mail: | jengpao@ms23.hinet.net |