| 1.
| Yu Feng Industrial Co., Ltd. |
🇹🇼 Taichung, Taiwan |
1 |
| 2.
| Yu-Fan Lin |
🇹🇼 Taoyuan, Taiwan |
1 |
| 3.
| Yu-Fen Chi |
🇹🇼 Yonghe, Taiwan |
1 |
| 4.
| Yu-Fen Chi |
🇹🇼 , Taiwan |
4 |
| 5.
| YU-FEN CHI |
🇹🇼 NEW TAIPEI CITY 234, Taiwan |
1 |
| 6.
| Yu-Fen Chi |
🇹🇼 Yonghe City, Taipei County, Taiwan |
3 |
| 7.
| Yu-Fen CHI |
🇹🇼 New Taipei City, Taiwan |
7 |
| 8.
| Yu-Fen Chi |
🇹🇼 New Taipei, Taiwan |
2 |
| 9.
| Yu-Fen Chi |
🇹🇼 Yonghe City, Taiwan |
3 |
| 10.
| Yu-Fen Wang |
🇹🇼 Tainan City, Taiwan |
1 |
| 11.
| Yu-Feng Hu |
🇹🇼 Taipei City, Taiwan |
3 |
| 12.
| Yu-Feng Hu |
🇹🇼 Taipei, Taiwan |
1 |
| 13.
| Yu-Fu Tseng |
🇹🇼 Hsinchu, Taiwan |
1 |
| 14.
| Yufang LIU |
🇨🇳 Shanghai, China |
1 |
| 15.
| Yufei Li |
🇨🇳 Siming District, China |
1 |
| 16.
| Yufeng HUANG |
🇹🇼 Miauli Hsien, Taiwan |
1 |
| 17.
| Yufeng HUANG |
🇹🇼 Miauli Hsien, TW, Taiwan |
1 |
| 18.
| YUFENG J. TSENG |
🇹🇼 Taipei, Taiwan |
1 |
| 19.
| Yufeng Jane Tseng |
🇺🇸 Stafford, VA, United States |
4 |
| 20.
| Yufu Gosei Kagaku Co., Ltd. |
🇯🇵 Tokyo, Japan |
1 |
| 21.
| Yufu Gosei Kagaku, Ltd. |
🇯🇵 Tokyo, Japan |
1 |
| 22.
| Yufu He |
🇨🇦 Ottawa, Canada |
1 |