China Calcium Carbide suppliers COUNTRY WISDOM INTERNATIONAL LIMITED.,is a special calcium carbide factory which located in inner mongolia of China. The factory has only the right to produce in China, but no right to export.So we export with the company of COUNTRY WISDOM INTERNATIONAL LIMITED.The two companies are the same manager. We can offer all size from-2mm,2-4mm,7-15mm,15-25mm,25-50mm,50-80mm,70-100mm,80-120mm.Usually the package is 50kg and 100kg new iron drum,but sometimes we ues special package as customer