Can security doors, fire doors, etc. replace security doors? What should I do if I find that the entrance door is inconsistent with the purchase contract? These problems make many owners feel intractable. In an interview, the reporter learned that on April 1 this year, the new national security door standards have been implemented and will be enforced on October 1. According to the requirements of the new standard, the owner can identify the security level through the permanent mark on the door. Don't take the safety gates Home inspectors have repeatedly found that developers use security doors, fire doors, etc. instead of security doors. "There are fundamental differences in the functions of the two, and they cannot be confused." He said that there are two main requirements for the entry door country. On the one hand, the "Code for the Design of Housing" clearly requires the entry door to use anti-theft security doors, on the other hand. From the perspective of fire protection, entry doors must have fire protection capabilities. The state has a clear standard requirement for anti-theft doors, that is, "General technical conditions for anti-theft security doors," and fire doors have their own corresponding standards for fire protection. No matter whether it is a fire door or a so-called safety door or floodgate door that appears on the market, it cannot replace the anti-theft security door with a clear standard. The door provided by the developer when handing over the house should be a security door with a fire protection function. In addition, he reminded the owner not to be fooled by some of the certificates provided by the developer. For example, the manufacturer's certificate cannot be used as a basis for judging whether the door meets the national standards. The entrance door must be tested by a qualified and related department before it can be determined. Does it comply with national standards? At the same time, it is recommended that the owner ask the developer to provide the anti-theft door burglary-proof fire test sampling inspection certificate at the time of collection to ensure safety. Security doors will have permanent markers The new national standards for anti-theft doors, "General Technical Conditions for Anti-Theft Doors," strictly regulate the security level, thickness of door frames, and number of lock points of security doors. Security doors must have sufficient vandal resistance. According to the new national standard, security doors must be kept from opening for more than 6 minutes when destructive tests are performed on weak parts with tools such as electric drills and crowbars. The new national standard has classified the anti-theft security grades of anti-theft door products according to the length of anti-destruction time and the thickness of the plate, and the level of anti-theft security has been changed from "C", "B", "A" to 3, and revised to "A" and "B". "C" and "D" 4 levels. The new anti-theft security level spelling letter code is "J", "Y", "B", "D". A is the highest level, decreasing in turn. According to the new national standard, the security door locks should be able to open even if the cylinder is drilled, the lock body is disconnected to break the lock, or the tools are inserted through the upper and lower clearances, and the lock tongue is released. Door leaf. In addition, in order to help consumers identify the authenticity of the security door, the new standard also requires the security door should have a permanent fixed mark. The security door marking consists of 3 parts. The marking symbol is the pinyin alphabet. From left to right, they are the anti-theft security door code, anti-theft security level and corporate custom features. The anti-theft security level mark is permanently fixed at the prominent position on the inner hinge edge, which is about 160 cm from the floor. Security Door Villa Design Residence
The HVLP Electric Paint Spray Gun make painting and varnishing much easier, with 30000 rpm speed, at max 500ml/min water consumption speed.
The material flow can be controlled by the switch.
Paint with the HVLP Paint Sprayer, easy to paint the hard-to-reach areas and no need to clean the rollers and brushes.
Working close to the ground and painting overhead are easy for the Electric Paint Spray Gun.
You can spray on paint, varnish and glaze quickly, evenly and cleanly using as little material as possible – and it's also kind to your back, neck and shoulders.
Electric Hvlp Paint Spray Gun,Ginour Paint Sprayer,Electric Turbine Paint Sprayer,Hvlp Electric Sprayer Ningbo Brace Power Tools Co., Ltd , https://www.cnbrace.com