. "file format used by CAD software and 3D printers"@en . . . . . . . . . "STereoLithography"@en . . . . . . . . . . . . . . . . . . . . "STereoLithography"@en . "STereoLithography"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .