TY JOUR TI Comparative test for polymer and organosilicon film quality marking in nanosecond fiber laser processing KW barcode KW laser processing KW marking KW contrast KW code readability KW polymer films KW nanosecond laser JO Science intensive technologies in mechanical engineering AU Pryakhin, E.I. AU Troshina, E.Y. PY 2023 IS 2023 PB Bryansk State Technical University