Calculator Resterm — the maker's product structure became the schema
Resterm manufactures electric heaters. Nobody hunts for a part number. The buyer states a heating requirement and the software returns the heater that fits. What mattered was where the software was built: a generic quoting tool carries a list, not the reasoning that says which product fits a case. We built this one on Resterm's own product structure and let the calculation work from inside it.
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