calcium carbide 50-80 mm specification 1.Manufacture 2.Six Years on producing & ... Detail:All the yearCaC2 Calcium Carbide of 25-50 / 50-80 / 70-100 / 80-120 mm sizeSpecificationsCalcium carbide;Gas yield:295L ... 2-4,4-7,7-15,15-25,25-50,50-80,70-100,80-120,120-250mmApplicantion:This product is ... atomic mass)10. SIZE4-7,7-15,15-25,25-50,50-80,80-120MM11. Packing50kg or 100kg iron drumCautions during ...