Both Ends Open Metal-to-Glass Vacuum Tube Diameter 70mm for Solar Thermal Parabolic Trough Concentrator

We manufacture Receiver Tubes, used for CSP Parabolic Troughs.There are 4 regular sizes:Φ40×Φ90×2000mm, Φ50×Φ95×3000mm, Φ70×Φ125×4060mm, Φ90×Φ145×4060mm.Receiver Tube(glass-to-metal, evacuated)used for CSP Parabolic TroughWorkingtemperatureWorkingpressureMaterialCoatingΦ40×Φ90×2000 mm300ºC40 barSUS304 stainless steelselective absorbing metal coatingΦ50×Φ95×3000 mm300ºC40 barSUS304 stainless steelselective absorbing metal coatingΦ70×Φ125×4060 mm400-550ºC40-60 barSUS321/316L stainless steelselective absorbing metal coatingΦ90×Φ145×4060 mm400-550ºC40-60 barSUS321/316L stainless steelselective absorbing metal coating/* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1