Ferro boron powder is applied to iron making, foundry and used as boron element additive in other applications 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  Â
desulfurizing and deoxidizing in steelmakin Ferro Phosphorus  P23%-27%   5-30mm, 10-50mm, 10-100mm 0-2mm Â
Magnesium Ingot 99.9% For reference:Al,Fe,Cu,Ni,Mn,SI,Cl
magnesium metal ingot 1.mg>99.90%,others
Calcium metal is used in the manufacture of steel as a flux or purifier(scavenger), in the removal of bismuth from lead and in the alloying of lead for battery grid (lead acid batteries).
The spec
Calcium Silicon Ca30Si60 Ca30Si55 Ca28Si55 Ca28Si50 CA 25SI50  Ca≥30%Si ≥60% Ca≥30%Si55-65% Ca≥28%Si55-65% Ca≥28%Si50-55%  C 0.6%MAX 200 100 6