Halva popularly made from sunflower seeds or peanuts. In Republic of Macedonia, ALVA (, "alva") refers to a sweet which comes in a few varieties. Alva made from tahini (sesame or sunflower) (Таан алва) is most used in Macedonia. Most popular is the alva from Negotino and Super Alva from Skopje. Alva from semolina (алва од гриз) is made only at home. Izmirska halva (Измирска алва) brought back from Izmir Turkey, of which large areas are populated by Macedonians, is a chocolate type of alva made from flour, cocoa, sugar and peanuts. This alva is also made at home. Alva is
Solder paste and fuses the parts together. The paste is a gray, putty-like material. The composition of the solder paste varies, depending upon its intended use. For example, when soldering plastic component packages to an FR-4 glass epoxy circuit board, the solder compositions used are eutectic Sn-Pb (63 percent tin, 37 percent lead) or SAC alloys (tin/silver/copper, named for the elemental symbols Sn/Ag/Cu). If one needs high tensile and shear strength, tin-antimony (Sn/Sb) alloys might be used with such a board. Generally, solder pastes are made of a tin-lead alloy, with possibly a third metal alloyed, although environmental protection legislation is forcing