Preparing the published article.
Comparing three quotations on the same basis
Normalise before you compare.
Normalise
List robot, controller, tooling, installation, commissioning, training, warranty and spares separately with tax treatment.
Compare technical response
Test methods matter more than yes/no claims: how is cycle time measured, how long must a run be to pass.
Compare risk
Who handles site conditions, who carries downtime cost, and which supplier can provide reference visits.
Method note: no vendor endorsement. Where public sources are cited, verify against the publisher's original text.