Ferro boron

Low-carbon,

Medium-carbon

, Low-Aluminum

FeB20C0.5

FeB18C0.5; FeB16C1.0; FeB14C1.0;;

5-30mm, 10-50mm, 10-100mm

0-2mm 100Mesh, 200Mesh, 300Mesh, -60Mesh

In plastic woven bag