
Premium Calcium Carbide Granules 50-80mm for Efficient Gas Production. High Gas Yield: Typical gas yield of 295L/Kg for particle sizes 50-80mm and 80-120mm. Strict Quality Control: Multi-stage sampling testing and air pressure testing to ensure safety and purity. International Certifications: Products meet Chinese National Standard GB10665-2004 and accept BV/SGS/CCIC inspection. Factory Direct Supply: Own factory in Ningxia with 6000 tons monthly production capacity. Fast Delivery: Delivery usually within 20 days after receiving deposit or original L/C. OEM/ODM Service: OEM and ODM services are available for customized needs. High Purity Grade: Purity reaches 99% with standard content suitable for analytical reagents. Secure Packaging: Drums sealed tight with separate storage to avoid size mixing.