http://www.wis-chemicalmaterial.com/chemical-raw-materials/calcium-carbide/ Calcium Carbide made in China Quick Details Classification:Other Inorganic Salts CAS No.:75-20-7 Other Names:Calcium Carbide MF:CAC2 EINECS No.:200-848-3 Place of Origin:Inner Mongolia, China Grade Standard:Industrial Grade Purity:90% min Appearance:Gray or Brown solis Application:Producing Acetylene Gas Brand Name:JSTC Model Number:All sizes Color:Grey Calcium Carbide Standard:GB10665-2004 Size:2-4/4-15/7-15/15-25/25-50/50-80/80-120mm Gas Yield:295 L/KG-305 L/KG MOQ:22.5 Tons HS CODE:2849100000 Calcium Carbide:99% Factory made in China website:http://www.wis-chemicalmaterial.com/chemical-raw-materials/calcium-carbide/