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Greetings from serck services !

We are a radiator manufacturing company and we use solder sticks and ingots in process of manufacturing our product.
We have an approximate consumption of 15 tons of solder each month.

The solder ingots & stick which we use are in below proportion;

1. Ingots Tin :Lead - 30 :70
2. Ingots Tin :Lead - 25 :75
3. Stick Tin :Lead - 30 :70 (dia 5 mm D shape)

Please offer your best quote for it.