DIN 11622-2-2015 青贮饲料和液体肥料容器, 沼气厂中的容器, 燃料筒仓和沟槽筒仓. 第2部分: 混凝土制青贮饲料和液体肥料容器和沼气厂中的容器
Silage and liquid manure containers, containers in biogas plants, bunker silos and trench silos - Part 2: Silage and liquid manure containers and containers in biogas plants made of concrete