Usual lead-bar formulas mixes i'm using in the lippines now: (1) 97% lead + 3% antimony (Sb) + 0 tin (2) 97% lead + 3% Sb + 1% tin (3) 92% lead + 6% SB + 2% tin We plan to import FCL basis, but plans to buy small quantities first to test your product through lab and actual use in production.