– Depending on the content of substances in the welding bar, they will be different applications
- Alloy composition: Sn63Pb37 applies to computers, precision instruments, television, micro technology
- Alloy composition: Sn55Pb45 applies to computer, smart phone, eletronics.
- Alloy composition: Sn40Pb60 applies to composite circuit boards, toys, lights, handicrafts