What is the quality of the security door of Sun Jiang

Spring security door is a well-known trademark, if there is no quality and brand assurance, this can not be taken, and the spring security door is almost no after-sales, I personally think that the spring brand is still good.

God will security doors are of good quality.

First of all, the brand is a manufacturer specializing in the production of "Shenjiang" brand advanced anti-theft security doors, ordinary metal entrance doors, fire doors, and non-standard doors. The company integrates R&D, production and sales, and adheres to the concept of "quality management and customer satisfaction". Such a brand is worth having. >>>More

The lock requires a three-way locking structure, 6 hinges, doors and windows and door frames with dark locks, even if the hinges are pried off, the door can not be opened. Whether it is a closed or fence type security door, the heavy one is better than the light one, because the heavy steel is more and coarse, and the damage resistance is good. The radius around the lock should be protected by steel plates of more than 100mm, and if the area is less than 200 square centimeters or the thickness is lower, it is easy to be damaged and the quality is not good. >>>More

The quality of Buyang security doors is very good, and the Buyang brand is very loud for more than ten or twenty years. Our family bought it for Buyang ten years ago. Except for the façade, the color is a little old after a long time. Everywhere else is ok. >>>More

You alright. One of the top 10 brands. Actually, no matter what. If the security door is on the level. Actually, it's not much the same.