How about the Feiyun security door

The old brand, the door is good, and the lock cylinder is recommended to be replaced with a B+ one, which is safer!

The door lock should be lubricated frequently so that it will not rust and open and close smoothly.

Escola and other well-known lock factories, most of the well-known lock factories use fully synthetic lock lubricants from Hotolube or Kluber. Fully synthetic base oil production, clear and transparent, colorless and odorless, low temperature resistance, no dust. Tao is full of 30 ml needle-nosed small oil bottles, drop a few drops, easy to use.

The service interval is six months.

Mineral oil should not be used because it is highly viscous and tends to get dirty. It is also not suitable to use pencil end or black graphite lubrication, which cannot lubricate the internal parts, and there will be heavy metals and color pollution.

Garbage Feiyun is really not good, recently my family encountered a problem, before the building materials city group purchase will buy, after the installation has not been moved, the door switch has a sound, and very big, looking for after-sales, that attitude, and others owe him money, the quality is not good, after-sales is so poor, it is a pit goods repair is not repaired, and then call for maintenance, that is called a difficult, call every day, a day for a person, change the person does not know the phone on the person, and then push you, far away, so buy the anti-theft door or buy a big brand, On the one hand, quality is also very important after sale! Feiyun garbage

Feiyun security door is not bad! The old brand, the after-sales and quality are fine, but it is best to let them change to a B+ lock cylinder, so that it is more secure.

The quality of the door is OK, but the price is relatively high, and it is automatically locked above D.

I feel that it can, the quality is better than other brands, the workmanship is fine, and the service is good!