1。原材料防盜
3d捕鱼1。 Anti theft of raw materials
原材料防盜很有可能许多新的客户并不是很了解，生铁原材料还可以防盜吗?回答是毫无疑问的。由于如今的球墨铸件下水井盖有别于原先的生铁原材料，如今的原材料是添加了球墨铸铁原材料的，而添加了球墨铸铁原材料的下水井盖是没什么收购 使用价值的。
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。机械设备防盜
2。 Anti theft of mechanical equipment
对如今的球墨铸件井盖儿而言呢，无论原先是否有防盗器，如今还能够很轻轻松松的再加上防盜对策，例如能够在下水井盖上缓缓的打一个小孔，装一个机械设备的防盗器，那么这类锁加满之后来只有用技术的专用工具才可以把下水井盖开启，因此这类防盜的对策十分的便捷，也十分的行得通，并且成本费十分的便宜。
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.下水井盖自身的防盜对策
3. Anti theft measures of the manhole cover itself
下水井盖自身能够加一个金属材料的手表表带，从內部就可以把井圈和下水井盖连为一体，关键的防盜对策還是大家安裝的弹黄弹黄的下水井盖，装好之后会全自动具有一个安全防护的功效，无需的专用工具是无法打开下水井盖的，这类弹簧片便是大家防盜的对策之一。
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。
也有一些较为独特的球墨铸件防盜下水井盖选用具备设计方案的新式防盗器和锁匙选用高韧性、防绣紫铜制做，防盗器在日常应用的全过程中锈蚀，使下水井盖无法打开。新式五防两层球墨铸件下水井盖，选用下水井盖和井圈一体设计方案，转盘式安装五金锁具，早已得到我国实用新型权。
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.
