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