ÁøÇà°úÁ¤

- Acoustic treatment
(À½ÇâÆ©´× ½Ã°ø°úÁ¤)

- Building a hometheater
(Ȩ¾¾¾îÅÍ ¹× ¸®½º´×·ë ½Ã°ø°úÁ¤)


ÆÇ¸Å ´ë¸®Á¡

- ¾îÄí½ºÆ½Ç»Àú
- AVÇöóÀÚ
- ¹Ìµð·±¼¥
- ÇÏÀÌž


´ë¸®Á¡ °è¾à¹®ÀÇ

- changchang102@gmail.com
- 010-4585-3993