Vacuum Booster 3540100-P21 For Great Wall Wingle 1. Company Introduction We, Baoding Tongling Auto Parts Co., Ltd., is famous for our full spare parts of Great Wall Motor, such as Hover, Wingle, Florid, Deer and C30 system. We are the agent of DELPHI, BOSCH, Valeo etc. The injector/ nozzle, ...