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Information / Plastic or cast iron hatch? Let’s first go back to the question – “Why is a sewer hatch necessary?”First of all, ensure road safety. Secondly, create access to the communication system and last for many years. What is the advantage of polymer-sand hatches? Probably only because of their cheapness. Therefore, if your choice…

Information / Rain receivers. And is it really necessary? Unfortunately, the construction of storm sewers is impossible without installing storm wells. So, according to the SNIP norms. Basically, the storm water inlet is located in the courtyard of a high-rise building, on a park alley, along the sidewalk and pedestrian crossing, of course, if there…

Information / Iron casting Cast iron is an alloy of iron with a carbon to carbon ratio of at least 2.14%. Mostly metal is divided into 2 types: gray and white. In the first, the silicon and graphite content is from 2.9 to 3.7%. On the main page, we have given a sequential description of…