How long does it take for an air conditioner to cool down a 40 square meter living room

It depends on what material, if the solid wood is not a problem for ten or eight years, as long as it is not soaked in water. The plastic steel will be deformed in two years at most.

Good quality, leather is indeed a leather sofa, can be used for more than 10 years, but to maintain the care of the line, I bought 5 years ago the red dot leather sofa, every year to ask their manufacturers to care for free once, until now it is quite new, for reference only.

It depends on the situation, it can be solved in a few minutes, but when a woman goes to the toilet, she usually touches up her makeup, and it takes a long time.

The warranty period of regular manufacturers is one year. I see a lot of mahogany on the market saying "X year warranty, lifetime warranty", the latter refers to helping you find someone to repair, you pay for it yourself, you have to figure it out.

It is related to your installation, the solid wood door sinks, grasps the quality of the door frame, and the quality of the hinge, and the quality of the door panel itself is seen as workmanship, and the general solid wood door can be used for more than ten or twenty years.