Spin Casting Procedures
If the souvenir emblems made of pewter (tin and lead alloy), all the shapes are formed by spin casting from liquefied pewter and then cool down to solid emblem, finishing and color filling are next procedures after shapes formed. Depends on the percentage of tin and lead, the kinds of pewter are categorized to 6 different grades. Pure tin (#0 type) is the most valued material with softness and #6 (with more lead contents) is the least costly but friable.