无转移石墨烯晶圆，衬底为SiO2/Si，面电阻低于3000，6英寸，1 EA=3 pcs，6英寸*3片

Non-transfer graphene wafer, substrate SiO2/Si, surface resistance below 3000, 6 inches, 1 EA=3 pcs, Six inches, 1 EA=3 pcs