... vehicle brake system profassional manufacture bundy tube brake line used for brake system in good quality used on vehicle brake systemprofassional ... 76mm,6mm,8mm,10mm with single wall or double wall for various coating: copper,polish,white zinc,pvf,olive green,etc ... of any brand trucks or tractors .4. For reliable quality, competition price and good delivery credit, QDGY brand brake pipes are exporting ...