Questão jurídica principal
Whether the CISG warranty for defects was excluded by a tacit agreement based on the low sale price and surrounding circumstances.
Decisão extraída
No tacit exclusion was established; the price reduction alone did not show a clear waiver of warranty.
Fundamentação extraída
A tacit exclusion requires a readily ascertainable and significant discount on objectively known value plus corroborating circumstances, which were lacking.