... leads;2,Hardness of pencil leads: 4H, 3H, 2H,H,HB,B,2B,3B,4B,5B,6B,7B,8B;3 ... lead ;5,Normal packaging of pencil lead:L*W*H:36.5CM*19.5CM*21CM;20KG/CTS;21KG/GROSS;800CTS ... by EN71-3, ASTM F963-08 and R.S.c.H-3. Established in 1988, Shangzhi Pearl Pencil Industry Co., ... boards, pencil and wedge joint boards, dressed lumbers, semi-finished flooring, and other more products. In 2007, our output of graphite ...