крутая корейская фабрика! опасные процессы изготовления бетонных архитектурных конструкций BEST 4

Playlist * 00:00 Process of making ultra-high-strength concrete pile. Korean No.1 PHC pile factory 11:31 Process of making huge plastic water tank. Korean storage tank manufacturing factory 24:02 Process of making connecting columns to columns 'huge girder'. Korean precast concrete factory 35:35 Process of making various retaining wall. Korean old concrete building material factory