You can not do without the permission of RTN, if you do any productive activity. Permitting Rostekhnadzor engaged state Rostekhnadzor Russia – Federal Ecological, Technological and Nuclear Supervision Service of Russia. The service has a central office and RTN own territorial bodies, for example, Rostekhnadzor Moscow, Rostekhnadzor, St. Petersburg, which involved in the issuance of […]

And this experience more important than experience achievements. Do riders there is a rule of thumb for beginners, if you fell off his horse, immediately sit down again, or be afraid of life. Also applies to people seeking to achieve its goal. It is important not cease to act and be determined to succeed. At […]

Needle valve – used as a flow regulator steam, water, gases, liquids. Installed on the pipelines, process equipment, analytical devices, reactors, air-conditioning system vehicles. The main part of the valve is a plunger – the bolt, which control the flow control working environment. During operation of the valve needle can be changed from fully open […]