rt

????????

lithographic ink. ƽ°æÓÍÄ«; ʯ°æÓÍÄ«. invisible writing ink. ÒþÏÔÄ«Ë®. letterpress ink. ͹°æÓÍÄ«. litho ink. ²ÊÓ¡ÓÍÄ«, Ó¡ÌúÓÍÄ«. luminous printing ink. ·¢¹âÓÍÄ«.