solder wire Sn50Pb50

Solder Wire:
1.Chemical composition: 50%Sn, 50%Pb.
2.have measured up the GB3131-2001 standards.
The details of solder wire:
1.Size: diameter 0.5~5.0mm
2.Weight:1kg/roll, 0.5kg/roll, 450kg/roll, 250g/kg
3.Chemical composition: 50%Sn, 50%Pb
4.have measured up the GB3131-2001 standard