BEST-lead free solder wire / tin wire/welding wire

1.pretty high welding effects
2.makes little smoke and welding spatter
3.lead free invironmental
FEATURES:
BEST lead free soldering wire is of pretty high welding effects.
Contains soldering flux: makes high fluidility and wettability.
Contains little impurity so that can diffuse well.
Environmental product:makes little smoke and welding spatter
Can solder the PCB of precision printer.
Improve the producing speed and reduce the producing cost