CWIC is correct, welding symbols do not have different figures for different welding processes. The graphic part of the sybmol only conveys the type of joint, ie fillet, single bevel groove, spot, seam, or in the case of EB, possibly a square groove. The welding sybmol can call out the joint preperation, root gap, etc, but if a specific process is required, that goes as a note in the tail of the symbol, using the EBW-HV as CWIC so mentioned.