Gazprom VNIIGAS evaluation of inspection of pipes with a protective ZUB COMPOSITE coating in a steel jacket production

Gazprom VNIIGAS evaluation of inspection of pipes with an external protective concrete weight ZUB coating in a steel jacket production

Mosstroy Research Institute evaluation of inspection of concrete mix

Mosstroy Research Institute evaluation of inspection of concrete corrosion resistance for a term o 50 years

Pre-qualification tests certificate of production for Bumi Armada Caspian Company readiness

Concrete robustness pre-qualification tests certificate for the pipes of 323,9х11,1 in diameter

Concrete check samples robustness tests certificate

Concrete check samples water absorption capacity tests certificate

Displacement and resistance to impact pre-qualification tests certificate for the pipes of 323,9х11,1 in diameter

Magnet marker installation pre-qualification tests certificate for the pipes of 323,9х11,1 in diameter

Moscow State University Technological transaction for pipes vibration and sound insulation relative quantity

Pipes slip coefficient test report

Pipes slip coefficient test report

Anode installation pre-qualification tests certificate for the pipes of 323,9х11,1 in diameter