Ключевые слова: approval, assurance, bad, business, company, compulsory, concept, consequences, consumer, control, costly, costs, customer, defects, discovery, economics, endanger, financially, guarantee, improve, industrial, industry, laws, legal, liability, marketing, message, negligence, offer, penalties, product, protection, quality, recall, refund, regulations, report, responsible, return, risk, safety, seller, sign, text, voluntarily, warranty, white, word,