To protect the surface of NBK in a very good condition,we alsways use Black Phosphated. We have many experience in Black Phosphated and NBK tubes,as we said,we are just in exporting seamless steel tube,different kinds,different process, supply products and service better and better.
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Our company is a private firm founded in 1990 with aim to develop export and import with Russia. We do promote EU industrial and consumer goods in Russia and strongly support marketing of Russian and CIS industrial products and services.