Materials: tungstenPurity: T>99.95%Density: 19.2g/cm2Appearance: silver gray metallic lusterExternal diameter: 5-15mmWall thickness: 0.5-5mmLength: ≤600mmProduction process: intermediate frequency sintering - cone into mandrel - polished peripheral - deep hole drillingProperty: high temperature (2100-2800°C), corrosion resistance, impact resistance, non-oxidation resistance, can be long-term used within 2300°CIt is used for reduction of vacuum and inert gas and it is the only option for super long warm outside corner protection tubeFunction: thermal corner protection tube, heating wire sleeve and nozzlePackaging: coils wrapped with waterproof paper, plastic bag inner and with carton box outside Payment Terms:T/T, D/P or L/CMinimum Order:1 Pieces FOB Port:QingdaoFOB Price Range:US$ 10 - US$ 10000Lead Time:15 - 30 days