The function of the lock point of the rolling shutter door is to prevent prying, but it is the lock cylinder that really controls the telescopic opening and closing of the lock point. No matter how many anti-theft safety lock points there are, there is always only one lock cylinder. Once the lock cylinder is opened, all the lock points can be opened. Therefore, for the buyers of anti-theft safety doors, it is the key to pay attention to the quality of the anti-theft lock cylinder. The lock cylinder is the core of the anti-theft lock. Generally speaking, there is a lock point on the anti-theft safety door, which is four lock points.

濫用劣質門鎖，無數標稱的“卷簾門”之所以會輕易“失守”，往往都和生產廠家為節約生產成本，濫用了一些低廉的劣質門鎖所致，大多數防盜門生產企業低價向社會采購來的鎖具，鎖體的鋼板質量很多均不符合標準，有的甚根本就不是鋼板.

Abuse of inferior door locks, countless nominal "rolling door" will easily "fall", often because manufacturers in order to save production costs, abuse some cheap inferior door locks, most anti-theft safety door manufacturers low price to the community to purchase locks, lock the quality of many steel plates are not up to standard, some are not even steel plates

采用的是仿鑄鐵板或仿鋼材的劣質材料，別說防撬，有的一加外力即能被掰開.鎖點一多，往往標價也就水漲船高，事實上并非鎖點越多越貴的防盜門就是好貨，選購時莫忘記要促銷廠商明明白白地提供出所用卷簾門鎖具的等級標準，這才是要緊的呢。

It uses inferior materials like cast iron plate or steel, not to mention anti prying. Some of them can be broken with external force. If there are more lock points, the price will rise. In fact, it is not that the more lock points, the more expensive the anti-theft safety door is a good product. Don't forget to promote the purchase. The manufacturer clearly provides the grade standard of the roller shutter door lock, which is important.