COO dan merek yang bekerja sama dengan kami:
Benkan ( Japan / Thailand ) , TK ( Korea ) , Mega (Italy) , BKL (Japan / Thailand) , Erne ( Austria / Europe ) , ASK ( Japan / Thailand ) , IF (Indonesia ) , PFF (Indonesia ) , BW ( Taiwan ) , Tachen ( Taiwan) , Tectubi Raccordi (Italy ) , Kanzen ( Taiwan ) , Ulma ( Spain ) , JD ( Italy ) , TechnoForge ( Italy ) , Sungkwang ( Korea ) , Viar ( Italy ) , Delcorte ( Italy ) , FKK ( China ) , GBA ( China ) , VM ( China ) , KS Tech ( Korea ) , Hebei Haitian Pipe Fittings ( China ) , Shinsei ( Japan / Malaysia ) , Pantech ( Malaysia )