錫錠Sn99.90執(zhí)行標(biāo)準(zhǔn)：GB/T 728-1998
化學(xué)成分%
Sn
Pb
As
Fe
Cu
Bi
Sb
Zn
Al
Cd
9.959
0.0135
0.0017
0.0021
0.0002
0.0123
0.0099
0.0001
