Our electric insulating paperboard is made of 100% unbleached sulfate pulp , with performance of high density,high mechanical strength,high electric strength and low compression index.It is a good kind of solid insulation material ,widely  used as electric industrial board for transformer, reactor, mutual inductor, electric device and etc.
      Thickness (mm): 1.0  1.5   2.0   2.5   3.0   4.0  5.0   6.0   7.0   8.0
      Standard size: 4400*2200 (Customized size is available)
      Quality standard : the quality of our electric insulating paperboard comply with PRC’S national standard of GB/T 19264.3 -2003/IEC 60641-3-1:1992