Be made of high-purity (above 99.5%) alumina ceramic, formed by cold isostatic pressing and sintered under high temperature, then precision machined and polished, the ceramic spare parts can meet any strict requirements of semiconductor equipment with its features of wear resistance, corrosion resistance, low thermal expansion, and insulation. With features of high temperature resistance, corrosion resistance, abrasion resistance and insulation, ceramic can work in many kinds of semiconductor production equipment with condition of high temperature, vacuum or corrosive gas for a long time. Made from high-purity alumina powder, processed by cold isostatic pressing, high temperature sintering and precision finishing, it could reach the dimension tolerance to ±0.001 mm, surface finish Ra 0.1, temperature resistance 1600℃. Here is the characteristics of alumina ceramic with different purity.Spray Granulation →ceramic powder → Forming → Blank Sintering → Rough grinding → CNC Machining → Fine Grinding → Dimension Inspection → Cleaning → PackingPlace of Origin: Hunan, China Material: Alumina Ceramic HS Code: 85471000 Supply Ability: 50 pcs per month Lead time: 3-4 weeks Package: Corrugated box, foam, carton Others: Customization service available1. About price: The price is negotiable. It can be changed according to your quantity. 2. About samples: Samples need sample fee, can do freight collect or you pay us the cost in advance. 3. About goods: All our goods are made of high-quality materials. 4. About MOQ: We can adjust it according to your requirement. 5. About OEM: You can send your own design for fabrication. 6. About exchange: Please email me or chat with me at your convenience. 7. High quality: Using high quality material and establishing a strict quality control system, assigning specific persons in charge of each process of production, from raw material purchase to pack. 8. Mold workshop, customized model can be made according to the quantity. 9. We offer the best service as we have. Experienced sales team are already to work for you. 10. OEM is welcome. 11. How can we guarantee quality? Always 100% Inspection before shipment; 12. What certification you have? We are ISO 9001 Quality Management System Certificated company. 13. What services can we provide? Accepted Delivery Terms: FOB,CIF,EXW； Accepted Payment Currency: USD, CNY; Accepted Payment Type: T/T, Language Spoken: English, Chinese 14. Can you provide OEM & OPM service? Yes, OEM&OPM orders are welcome. 15. Can I visit your factory? Warmly welcome to visit our factory!1. How can I get a quotation? Leave us a message with your purchase requests and we will reply you within one hour on working time. And you may contact us directly by Trade Manager or any other instant chat tools in your convenient. 2. Can I get a sample to check the quality? We are glad to offer you samples for test. Leave us a message of the item you want. 3. What is your delivery time? A: Normally, our delivery time is within 30 days after confirmed.