What is the fine-grained topic of the following text: Kloppenberg warrants to the original purchaser that it will repair or replace the stainless steel frames on any of the commercial furniture of its manufacture bearing the name Kloppenberg due to a factory defect in material and/or workmanship occurring within the first 50 years from the date of sale. Only return the topic.
Kloppenberg's warranty policy on their commercial furniture's stainless steel frames