Reference NO.
N1318018, DO-727, S131I10, J1310911, US102123, FO1292, 1800364, MOF3010, OP 644/2, US102119, 70380336, 2050528SX, 70380335, OF-4406, V250060, DO983, W920/15, SM179, 10-00-010
Material
Filter paper, felt, metal mesh, non-woven fabric, etc