4 x 12 = 0.26gm
3 x 7 = 0.03gm               4 x 14 = 0.40gm
4 x 7 = 0.04gm                4 x 16 = 0.50gm
3 x 8 = 0.05gm                4 x 18 = 0.68gm
4 x 8 = 0.07gm                4 x 20 = 1.24gm
                       4 x 10 = 0.14gm               5 x 20 = 1.55g                           

SSG = 1.6gm.  AAA = 0.8gm   BB = 0.4gm  No.1 = 0.3gm
No.3  = 0.25gm  No.4 = 0.2gm  No.6 = 0.1gm