The company's CWO series meets the unacceptable standard JB/T7935-95 (formerly national standard GB9147-88), which has reached the international level in the 1990s. The whole series includes three models, 16 center distances and 12 speed ratios.
The company's CWO series meets the unacceptable standard JB/T7935-95 (formerly national standard GB9147-88), which has reached the international level in the 1990s. The whole series includes three models, 16 center distances and 12 speed ratios.
