Comparison : Item # 17873, C10100 (Oxygen-Free-Electronic)
Item # 17874, C10200 (Oxygen-Free)
Item # 17875, C11000 (Electrolytic Tough Pitch)
Item # 17876, C11300 (Tough Pitch with Ag)
Item # 17877, C12200 (Phosphorus-Deoxidized, High Residual P)