3d捕鱼1。 Anti theft of raw materials
It's very possible that the raw materials can prevent theft。 Many new customers don't know much about it。 Can pig iron raw materials still prevent theft? The answer is no doubt。 As the current ductile iron casting manhole cover is different from the original pig iron raw material, the raw material is added with ductile iron raw material, and the manhole cover added with ductile iron raw material has no purchase value。
2。 Anti theft of mechanical equipment
3d捕鱼For today's ductile iron casting well cover, no matter whether there was an anti-theft device or not, now it can also be very easy to add anti-theft countermeasures, such as slowly punching a small hole in the well cover, installing a mechanical equipment anti-theft device, then after this kind of lock is full, only the special tool of technical specialty can open the well cover, so this kind of anti-theft is very important The countermeasures are very convenient and feasible, and the cost is very cheap。
3. Anti theft measures of the manhole cover itself
The manhole cover itself can add a watch strap made of metal material, which can connect the well ring and the manhole cover from the inside。 The key anti-theft countermeasure is the spring yellow manhole cover installed by everyone。 After it is installed, it will automatically have the effect of safety protection。 It is impossible to open the manhole cover without professional special tools。 This kind of spring is the anti-theft measure for everyone One of the countermeasures。
3d捕鱼There are also some relatively unique spheroidal graphite casting anti-theft manhole covers, which are made of high toughness and anti embroidered red copper. The anti-theft device is rusted in the whole process of daily application, so that the manhole cover can not be opened. The new type of five prevention two-layer ductile iron casting manhole cover, which adopts the integrated design scheme of manhole cover and well ring, and the turntable type installation of hardware lock, has already obtained the right of utility model in China.