We are one of the biggest manufacturers specializing in chains and sprockets in china. As the member of national technology committee for standardization of chain transmission and national association of chains transmission industry, we have exported our products to Japan, Europe, America and southeast Asia. The annual output is up to 10 million meters. The company has passed ISO 9002 certification in 1999. Our products include: Transmission chains for motorcycleEngine timing silent chains for motorcycleEngine timing chains for motorcycleSeries of sprockets