2 1 4 x 80 July 8, 2019 16 32 64 128 2 1 4 x 80 thermal paper 2 1 4 x 80 thermal receipt paper 4 x 2 x 1 80 0 4 mũ 2x 1 4 mũ 2 x 80 800 x 1 4 2 2 1/4 x 8 8 1/2 x 4 1/2
