Carbon Raiser, Carbon Black, Dicyandiamide manufacturer / supplier in China, offering Corrosion-Resistant 25-50mm Calcium Carbide Coatings for Industrial Use with Nace Certification, High-Purity Calcium Carbide Crystals for Semiconductor Manufacturing with Semi Certification, Wd Fast-Acting Calcium Carbide Granules for Instant Acetylene with Osha Compliance and so on.