Dear gentlemen, if you do not understand something about the rationing of explosion barriers, or doubt - ask, we will tell you everything we know, it is free.
Remember that according to part 5 of Article 48 of the Civil Code of the Russian Federation, the person preparing the project documentation is responsible for the quality of the project documentation and its compliance with the requirements of technical regulations.
Simplifying and coordinating dubious products, you may help to earn counterparties, but take responsibility.

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