HB Pencil Lead 2mm 1) Dia:2.0mm; 2) Hardness:HB; 3) Length:185mm; 4) Certification:EN71-3,ASTM F963-08,ST2002-3 This kind of product has ... -3,ASTM F963-08,ST2002-3)2.1 Pencil Lead(EN71-3,ASTM F963-08,ST2002-3)2.1 Pencil Lead (EN71-3,ASTM F963-08,ST2002-3)2 ... .1 Pencil Lead (EN71-3,ASTM F963-08,ST2002-3)2 ...