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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: 6400*3200,4400*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
transformer paperboard