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: 200 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 project. 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. Good price. We have our own factory, and will provide the best price for customers.It is possible to make mounting holes in any position to the length direction.1. How to apply for free samples? lf the item(you selected) itself have stock with lower value, we can send you some for testing, but we need your comments after tests. 2. What about the charge of samples? lf the item (you selected) itself have no stock or with higher value, usually double its fees.1. How long is your production lead time? It depends on product and order qty. Normally, it takes us 25 days for an order with MOQ qty. 2. When can I get the quotation? We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation, please call us or tell us in your mail, so that we could regard your inquiry priority. 3.Can you send products to my country? Sure, we can. If you have no your own ship forwarder, we can help you.