гарантировать исправную работу в течение одного года со дня

Гарантировать исправную работу в течение одного года со дня

 Hydro Flame warrants its furnaces to be free from defects in materials and workmanship for a period of one year from the date the furnace is delivered to the purchaser.

 I-R Company warrants to the original user the products manufactured by the Company to be free of defects in material and workmanship for a period of one year from date of purchase by such a user.