New ammunition designed for the L/51 cannon include high performance kinetic rounds - Armor Piercing Fin Stabilized Discarding Sabot - (APFSDS), and high explosive, air-bursting munitions (HE-ABM). Both are derived from existing types designed for the L44/55 120mm guns. Photo: Noam Eshel, Defense-Update
This piece shows pattern and texture because of the way the metal is weaved together. The metal also creates a pattern from light to dark in the weave, giving the piece visual appeal. The surface of this is most likely smooth as well.