INCREASE OF RELIABILITY AND EFFICIENCY OF WORK OF DOUBLE-PISTON SOLUTION OF CONCRETE PUMPS WITH DISH VALVES FOR ACCOUNT OF EXCEPTION OF OPPOSITE CURRENT OF CONCRETE MIXTURE. Academic journal Industrial Machine Building Civil Engineering, [S. l.], v. 1, n. 40, p. 8–13, 2017. Disponível em: https://ojs35.nupp.edu.ua/znp/article/view/213. Acesso em: 23 dec. 2025.