Serve promise
TOP products have an excellent reputation for high quality.In the case of the rational use,TOP products all have excellent durability. In order to make our customers get the best of the consumer rights protection,TOP provides you with the most comprehensive high-quality and efficient after-sales service.Now promises of TOP are as following

Free for Warranty terms
1.The welding and the internal structure of all TOP products both have one year guarantee period.
2.If there is something wrong with the quality of TOP products within two years,we will repair it within five or seven days after we get back the products.

Non-application range of the above terms
ducts are broken because of irresistible reason
2.Non-normal use and Man-made damage