An electroconductive resin composition comprising 100 parts by weight of {HEAD ~ thermoplastic resins} and thermosetting resins and 15 to 150 parts by weight of carbon black having a DPB oil absorption amount of 400 ml/100 g or more and expanded graphite having an average particle size of 40 μm or more, wherein the expanded graphite content is 40 to 90% by weight of {TAIL ~ the total amount} of the carbon black and the expanded graphite 
An electroconductive resin composition comprising 100 parts by weight of { HEAD ~ thermoplastic resins } and thermosetting resins and 15 to 150 parts by weight of carbon black having a DPB oil absorption amount of 400 ml/100 g or more and expanded graphite having an average particle size of 40 μm or more , wherein the expanded graphite content is 40 to 90 % by weight of { TAIL ~ the total amount } of the carbon black and the expanded graphite
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