... .Size and shape:30-100mm; irregular lump 3.150kgs in one drum. Calcium aluminum alloy lumpcalcium aluminum alloy lump, Ca 70%, Al ... 75%, Al 25%, 30-100mm, packed in iron drum, inner filled with argon gas,calcium aluminum alloy lump, Ca 70%, Al 30 ... %, Ca 75%, Al 25%,purity of calcium element in alloy can be 98.5% and 99.92%min,purity ...