Help with Designations

[WeedWhackinWelder]

The letters and numbers I put up are suppose to be a designation for a type of hardwire used with Mig

[Grumpy]

Try this site: http://www.weldguru.com/welding-electrode.html

[WeedWhackinWelder]

E-70C-3-M
E-70T-10MJ-H8



If anyone can give me some detailed information on what either of those stand for, it would be appreciated

My Welding Instructor told us to go find out what they mean, so far ive been unlucky wondering if any of you guys could help out

Thanks in advance