QUALITY GUARANTEE OF CALCIUM CARBIDE
1.We will take samples from each lots of calcium carbide lump before carbide process,and make record,to ensure products with excellent gas yield. 2.We often do air pressure testing to drums,ensures carbide drums seals tight and safety.and we fill in nitrogen in each drums also. 3.Different sizes stored separately,to avoid size mixing. 4.We will take samples test again before loading,ensure loaded goods with correct weight,sizes,gas yield and quantity. 5.Our calcium carbide production is bases on Chinese National Standard:GB10665-2004