TYWH COMPANY LIMITED is a manufacturer of Calcium Carbide, and our monthly production is 3000MT, and the general size of Calcium Carbide is 1-4mm, 4-7mm, 7-15mm, 15-25mm, 4-25mm, 25-50mm, 50-80mm, 80-120mm and so on. The package is 50KG & 100 KG iron drum.