BDH

[ Machines, namely, material separation columns and their structural parts; and linings, floors and structured linings being structural parts of the aforesaid separating column machines ]

[ Heat and mass transfer devices, namely, distilling columns, rectifying columns, absorption columns, desorption columns and extraction columns and their structural parts for exchanging heat, mass or energy and for controlling fluid flow; and linings, floors and structured linings being structural parts of the aforesaid columns ] *Structural parts for heat and mass transfer devices, namely, structural parts for distilling columns, rectifying columns, absorption columns, desorption columns and extraction columns for exchanging energy and controlling fluid flow*