1. "Bronze" and "cast iron" are very vague descriptions for metal. Bronze and iron are both alloys. Alloys can come in various percentages of various base metals.
2. Therefore, when someone claims to be selling you bronze, ask them how much tin and how much copper. Brass is technically a type of bronze, made from "mostly" copper and "some" zinc. (I hope you're noticing my vague adverbs!)
3. In India, "tin" has various meanings. Tin is not the same as the material used in tin sheets. The tin that we need to any type of bronze maybe similar to the tin found in the tinning material used for soldering...which is tin plus lead.
4. The local casters do not believe they can melt tin, because they think tin is a type of steel. ...Indeed tin is a type of steel...but why does the material used in tinning?
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