& nbsp; & nbsp; Shiyan Si en import and export trade Co., Ltd. is located in Dongfeng commercial vehicle production base - Shiyan whitecaps Auto City, here is the largest distributing center of Dongfeng commercial vehicle spare parts. & nbsp; & nbsp; & nbsp; the company mainly engaged in Dongfeng commercial vehicle automobile electric appliances, mainly car solenoid valve, switch, a relay, a regulator, flasher, wiring harness, flame arrester, instrumentation and sensors, speakers, EFI system of more than 1000 varieties. Since the establishment of the company for many years to develop all over the country Dongfeng commercial vehicle spare parts market, and with customers around the establishment of a wide range of cooperative relations. />