Nanjing Nkk Expo CO., LTD is the leading manufacturer of Expo product in China, be appointed to the Canton Fair supplier more than 20 years, It engaged in the R&D of tension locks for many years, it is the sole patent owner of tension lock worldwide.
Nanjing Nkk Expo CO., LTD is the leading manufacturer of Expo product in China, be appointed to the Canton Fair supplier more than 20 years, It engaged in the R&D of tension locks for many years, it is the sole patent owner of tension lock worldwide.