shanghai hongsheng auto parts factory is a professional supplier of auto o ring kits seriesauto oring cord seriesauto o ring seriesauto rubber parts series and auto parts series. Rely on more than 40 years experience in auto rubber manufacturing industry and strong technology supports we committed to the research and manufacture of auto rubber sealing parts at the area of automobile medical equipment electron industrial control and fluid control. As a professional supplier of auto rubber and auto parts shanghai hongsheng auto parts factory has advanced producing machineries and great inspection devices that ensuring product size and physical property requirements.