1. (Bukwang Hardware Co.,Ltd)
- Tel : 02-422-1463~4
- Address : 36 Gaun-ro 121beon-gil, Namyangju-si, Gyeonggi-do, 472-060 Rep. of KOREA (472-060)
2. (Elssi Co.,Ltd)
- Tel : 031-575-9734
- Address : 42 Geumgang-ro 928beon-gil, Jinjeop-eup, Namyangju-si, Gyeonggi-do, 472-863 Rep. of KOREA(472-863)
3. (Taeyoung Global Co.,Ltd)
- Tel : 02-2242-8000
- Address : 205-1 Seohanam-ro, Hanam-si, Gyeonggi-do(465-230)
4. (Woosuk International Corp.)
- Tel : 031-557-5347
- Address : 181-50, Koseumoseu-gil, Guri-si, Gyeonggi-do(471-060)
5. (Daechang Hardware Co.,Ltd)
- Tel : 031-312-5511
- Address : 15, Jeoksalttuk-gil, Siheung-si, Gyeonggi-do 429-130
6. (Hyundae Precision Hardware Co.,Ltd)
- Tel : 051-319-2000
- Address : 37, Gwaegam-ro, Sasang-gu, Busan (617-726)
7. (ShinHan Metal)
- Tel : 051-303-9700
- Address : 556, Sasang-ro, Sasang-gu, Busan (617-080)
8. (Iljin Hardware Co.,Ltd)
- Tel : 053-358-3272
- Address : 64, Waryong-ro 90-gil, Seo-gu, Daegu (703-110)
9. (Daesung Constrvction Co.)
- Tel : 053-655-1345
- Address : 13, Songhyeondong 2-gil, Dalseo-gu, Daegu(704-340)
10. (Baekwoon Hardware Co.,Ltd)
- Tel : 042-628-1135
- Address : 53, Hannam-ro 150beon-gil, Daedeok-gu, Daejeon(306-010)
11. (Jeonnam International Corp.)
- Tel : 062-603-3300
- Address : 53, Maewol 2-ro, Seo-gu, Gwangju (502-795)