KS A ISO 9175-2:2013 Tubular tips for hand-held technical pens using India ink on tracing paper-Part 2:Performance, test parameters and test conditions
2013KS A ISO 9175-2:2013 Tubular tips for hand-held technical pens using India ink on tracing paper-Part 2:Performance, test parameters and test conditions
0000 KS A ISO 9175-2-2001(2011)
2001KS A ISO 9175-2:2001 Tubular tips for hand-held technical pens using India ink on tracing paper-Part 2:Performance, test parameters and test conditions