Cheap and High Quality Supplier Casting 75% Ferrosilicon. Silicon Content Range: Available in 75%, 72%, 70%, 65%, 60%, 45%, and 15% silicon grades. Customizable Size: Standard 10-50mm or customized according to your specific request. OEM Logo Service: We accept your design files to produce custom logos on the product. ISO and SGS Certified: Product quality verified by ISO9001, SGS, and BV authentication. Fast Delivery: 7-14 days for stock items, 25-45 days for custom orders. Versatile Applications: Used as deoxidizer, alloy agent, reductant, and inoculant in steel and industry. Professional Logistics: Permanent freight forwarders available for best shipping rates and service. Factory Direct Supply: Direct manufacturer and trading company with nationwide sales network.