of your concrete wall. By Bill Leonard. You can say a great deal in favor of cement block (or, if you prefer, concrete block) building. Itâs fairly fast, reasonably easy, particularly in small projects, and incredibly cheap if you are willing to scrounge a little and salvage the block.
MGW may refer to. 1  An abbreviation for Media gateway, a translation unit between disparate telecommunications networks. 2  The IATA airport code for Morgantown Municipal Airport. 3  maximum gross weight: the abbreviation m g w appears on road signs.
Magnesium oxide (MgO). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. MAGNESIUM OXIDE is used as an antacid and mild laxative and has many nonmedicinal uses.