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. A complete set of our own team to support your selling. We have outstanding R&D team, strict QC team, exquisite technology team and good service sales team to offer our customer the best service and products. We are both manufacturer and trading company. 2. We have our own factories and have formed a professional production system from material supplying and manufacture to sale, as well as a professional R&D and QC team. We always keep ourselves updated with market trends. We are ready to introduce new technology and service to meet the market needs. 3. About price: The price is negotiable. It can be changed according to your quantity or package. 4. About samples: Samples need sample fee, can do freight collect or you pay us the cost in advance. 5. About goods: All our goods are made of high-quality materials. 6. About MOQ: We can adjust it according to your requirement.