We are manufacturer of high purity Alumina crucibles and boats, for Al2O3 content>99.7%. It can stand 1700C, so widely used for high temperature application, like metal processing/glass melting, rapid thermal cycling, gemstone purification for jewelry industry etc. Product Feature 99.5% alumina content, 1700C working temperature, all sizes can be made according to requirements, very fast delivery Product Specification/Models Boat shapes and capacity: We can make from 5ml to 6000ml. Our standard ones are, 10ml, 20ml, 30ml, 50ml, 100ml, 130ml, 150ml, 200ml, 1000ml, 2000ml etc. Application High temperature application Other Information Non-standard sized boat and crucibles can be made according to requirements. HS Code: 6903 Origin: Zhengzhou, Henan, China Packing: Wood Box Min. Order: 5PCS Transportation: By air, By sea