
Factory Direct Sales Ceramic Making High Temperature Calcined Alumina Alpha. High Purity Alpha Alumina: Al2O3 content reaches 99.9%, ensuring superior quality for refractory applications. Wide Particle Size Range: Available in sizes including 20-30nm, 50nm, 500nm, and <45um to meet diverse needs. Free Sample Availability: Free samples offered for stock items; customer only pays shipping fee. Fast Sample Delivery: Samples can be delivered within 24 hours after order confirmation. No MOQ for Standard Products: Standard products have no minimum order quantity requirement. Finished Product Processing: We provide die-cutting services to create finished products from raw materials. Manufacturer Direct Sales: Professional manufacturer with over 10 years of experience selling factory direct.