Rubber Drain Hole Plug, Drain Pipe Plug, Drain Outlet, Plug for Pool, Plugging Head, Cap 5.0 2 ReviewsColor: Hole ID 25-31mm useProduct sellpoints Multi-Purpose:Ideal for pool drains, bathtub drains, and more, this plug serves various applications. Versatile Fit:Adjustable expansion and contra...
The utility model relates to a rotary-type airbag plugging structure of a drain pipe in a hydropower station. The rotary-type airbag plugging structure comprises an air bag installed on the position of the pipe orifice of the drain pipe. The air bag is connected with an air source through...