There is not a Nemeth Code symbol for the "tensor product."
Since there is not a symbol for the tensor product, it is advisable to transcribe the printed tensor product sign as a "circle with an interior cross". $C_$@*]
Thank you for the question!
This reply was modified 4 years, 10 months ago by kdejute. Reason: Did further research; confirmed no Nemeth Code symbol for "tensor product"