*Hoop coupling – “Agrinol” production, is made of galvanized steel.

*The lock with lever, Rieke production, is supplied with a device for sealing plastic cotter.

*The removable deep-drawing top 1,0 mm thick with relief.

*Drum’s body is made of sheet metal thickness 0,9 – 1,0 mm.

*Edges-ridge – Two ridges that are made on the surface of the drum’s frame with radius R=9 mm.

*The dense, strong and tight welding seam is made by contact welding overlapped width of 4 mm.