Riky Stepanus Situmorang, Novin Haritsyah, James Haryanto, & Hendrik Voice Sihombing. (2026). Impact of abrasive material, spraying pressure, and nozzle angle on roughness of ASTM A36 steel in sandblasting processes. Applied Chemical Engineering, 9(2), ACE-5924. https://doi.org/10.59429/ace.v9i2.5924