Electric shutter doors are favored by consumers because of their convenient use characteristics. However, attention must be paid when purchasing electric roller shutter doors. Because improper selection will seriously affect your use, the overall need to pay attention to the purchase of electric roller shutter doors. The following points. The first is to look at the electric shutter doors according to the length of damage prevention, plate thickness and other indicators. The new standard classifies anti-theft security and classifies anti-theft security levels as "A", "B", "C", and "D", and A is the highest level, decreasing accordingly. The damage prevention time of the electric rolling shutter door is also gradually reduced. The lowest D level is at least 6 minutes. Second, look at the door leaf of the electric shutter door and the thickness of the steel sheet of the door leaf. Grades A, B, C, and D should reach 2 mm, 2 mm, 1.8 mm, and 1.5 mm, respectively. The thickness of the steel plate is directly related to the security performance of the electric rolling shutter door. There are asbestos and other fireproof, heat preservation and sound insulation functions in the good steel electric rolling shutter door frame. Look at the electric shutter door locks. Electric shutter doors are self-locking and anti-snapping features. According to the new standard, the lock of the electric rolling shutter door should be able to break the lock cylinder even if it breaks the lock cylinder, breaks the lock body connector to disassemble the lock tool, or enters the tool through the upper and lower clearances to release the lock tongue. Open the door leaf; the lock point between the door frame and the door leaf shall be no less than 12, 10, 8 and 6 according to the security level A, B, C and D; the main lock tongue of the electric rolling door shall extend the effective length Not less than 16 mm, and there should be electric roller shutter latch stopper. Look at the electric shutter door mark. The new standard also adds information that can help consumers identify the authenticity of electric roller shutter doors, which requires that the electric roller shutter door should have a permanent fixed mark. The electric roller shutter door marking consists of 3 parts. The marking symbol is pinyin letters. From left to right, they are the anti-theft security code (fam), anti-theft security level and corporate custom features (including the enterprise code and product code). Among them, the anti-theft security level mark is permanently fixed on the side of the inner hinge at a height of about 160 cm from the ground. The "metal door", "steel door", "entry door", etc. are not electric shutter doors, to remind consumers to carefully identify the purchase of electric shutter doors. Door purchase plate
LED Underwater Boat Light has the characteristics of energy saving, high light efficiency, rich colors and long life.Underwater Boat Lights can emit a variety of colors, gorgeous and colorful, and can better illuminate under water. LEDER technology`s Underwater Boat Light has good waterproof effect. Moreover,the materials of LED Underwater Boat Lights are generally stainless steel outer panel and aluminum lamp body, which has the advantages of strong corrosion resistance and strong impact resistance.
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