We can offer Complex Calcium C20 for Lead Casting, and Lead acid batteries Casting plants, origin Peru, with following specs:

Boro (B)  9.94%

Boro Oxide  32% min.

CaO  8%-14%

Na2O  6%-13%

K2O  0.4%-0.8%

MgO  1%-2%

Fe2O3  0.1%-0.4%

SiO2  1%-4%

SO4  3%-7.5%

Cl  3%-7.5%

Humidity  4.5%-8.5%

Size ASTM 120  70%-95%