Product Brand:SnCu0.7.SnCu0.3.SnCu3.SnAg0.5Cu0.5.SnAg3Cu.SnAg4Cu.Sn Cu1Ag.

                        SnCu4Ag1.Sn Cu6Ag2.Sn Sb5

The drafter of lead free solder national standards of GB/T20422-2006.

The drafter of soft solder test method national standards of GB/T28770-2012.

The drafter of lead free solder-chemical composition and type industry standards of SJ001-2007.