4B 6B cummins piston pin manufacturers Shiyan Golden Automobile Components Co. Ltd. is located in Shiyan 锛孒ubei province which is the biggest Dongfeng automobile manufacturing base of China. And here is head office of Dongfeng commercial vehicle Co.,Ltd. Shiyan Golden Automobile Components Co. Ltd. is founded in 2009. After many years' development, we win the trust of our clients and. By taking...