1. National awards for industrial progress

   OriginalPaper Pages: 557 - 561

2. Collaboration between member nations of the Council for Mutual Economic Aid (COMECON) in the chemical and petrochemical process machinery industry

   • G. O. Terzyan

   OriginalPaper Pages: 562 - 566

3. Specialization and the development outlook for pump production in COMECON countries

   • Yan Faron

   OriginalPaper Pages: 567 - 570

4. Improved design and fabrication technology of integral welded cylindrical screen baskets for centrifuge bowls

   • M. M. Abelev

   OriginalPaper Pages: 571 - 574

5. Automatic pneumatic-controlled frequency-pulse liquid proportioners

   • A. L. Gurevich
   • Yu. V. Yakobson
   • M. V. Sokolov

   OriginalPaper Pages: 575 - 577

6. New centrifugal multistage spray nozzle design

   • A. N. Leventsov

   OriginalPaper Pages: 578 - 580

7. How mesh packings can be used in the rectification towers of air separation plants

   • V. P. Alekseev
   • Yu. D. Navrotskii
   • A. E. Poberezkin

   OriginalPaper Pages: 581 - 583

8. On the design of long-slit uniform-resistance extrusion heads

   • V. S. Kim
   • A. N. Levin

   OriginalPaper Pages: 584 - 588

9. Design of elliptical closures loaded by external pressure

   • V. I. Rachkov

   OriginalPaper Pages: 589 - 594

10. Investigation of the strength of the rotor joint ring in liquid separators

    • V. I. Sokolov
    • I. V. Koshelev

    OriginalPaper Pages: 595 - 598

11. Effect of nonplanarity on the operation of a sieve plate

    • A. N. Kovshov
    • L. S. Aksel'rod
    • L. S. Pozin

    OriginalPaper Pages: 599 - 602

12. Investigation of heat transfer from the spray side of a spray heat exchanger

    • F. A. Ovenko
    • S. A. Balitskii

    OriginalPaper Pages: 603 - 606

13. Decarbonization annealing as a method for improving the enameling properties of steel

    • M. S. Poljak
    • S. T. Zverev
    • G. V. Petrov

    OriginalPaper Pages: 607 - 608

14. Behavior of carbon steel during manufacture of dished bottoms and vessels by cold rolling with a single roll

    • Yu. I. Kozlov
    • S. T. Lin

    OriginalPaper Pages: 609 - 611

15. Design improvements in NGP centrifuges

    • G. A. Pereyaslov

    OriginalPaper Pages: 612 - 613

16. Pipe bending by induction heating

    • N. A. Sypchenko

    OriginalPaper Pages: 614 - 614

17. Resistance to corrosion of certain metallic materials in sulfurous and alkaline waste products of oil refineries

    • L. A. Poluboyartseva
    • A. A. Reifer
    • A. L. Libin

    OriginalPaper Pages: 615 - 615

18. Some problems in the repair of tube bundles in furnaces

    • I. A. Ternovskii

    OriginalPaper Pages: 616 - 619

19. Device for cutting raschig rings from stainless steel tube waste

    OriginalPaper Pages: 620 - 620

20. New device for the contactless measurement of the outside diameter of plastic pipe

    • P. A. Khil'chuk

    Information Pages: 621 - 621