As a manufacturer of nodular cast iron manhole cover, we pay attention to the majority of users, anti-theft, then there are several ways of nodular cast iron manhole cover anti-theft? The following is a detailed introduction for you.
1 material anti theft
Material anti-theft may be many new users do not understand, cast iron materials can also be anti-theft? The answer is yes。 Because the current nodular cast iron manhole cover is different from the original cast iron material, the current material is added with nodular graphite material, and the well cover added with nodular graphite material has no recycling value。
2. Mechanical anti-theft
For the current nodular cast iron manhole cover, no matter whether there is a burglarproof lock or not, now it can be easily added with anti-theft measures。 For example, you can gently make a small hole on the well cover and install a mechanical anti-theft lock。 After this kind of lock is added, only professional tools can be used to open the well cover。 Therefore, this anti-theft measure is very convenient and very good Yes, and the cost is very low。
3。 Anti theft measures of manhole cover
The manhole cover produced by Shunjian casting industry can be added with a metal watch chain, which can connect the well ring and the well cover together from the inside. The most important anti-theft measure is the well cover with spring spring installed. After installation, it will automatically play a protective role. It is impossible to open the well cover without special tools. This kind of snap spring is one of our anti-theft measures.