A drain block as concrete prism with axial opening has metal rods with front and back outdoor ends as lops and hooks, quick-release hinge joints, U-shape strip made of fiber synthetic material.
申请公布号
UA33693(U)
申请公布日期
2008.07.10
申请号
UA20080001855U
申请日期
2008.02.12
申请人
INSTITUTE OF HYDRO-ENGINEERING AND MELIORATION OFUKRAINIAN ACADEMY OF AGRARIAN SCIENCES
