Solar Collector Spb-58/1800-20 with Good Quality

1)It is suitable for the flat roof and the slope roof. 2)The support material: Aluminum alloy or stainless steel 3)Manifold Casing Material: Stainless steel or Aluminum 4)Insulation: Rockwool 5)Hail resistance: 25mm 6)Heat-pipe vacuum tube: Three target tube with the SS-C/CU selective coating 7)It can endure 0.6Mpa high pressure. 8)When one vacuum tube is broken, it still can work as normally 9)High efficiency: >64.9% in summer and >45% in summer   OEM SERVICE         we are a professional manufacturer       Our advantages:Our products process:  /* 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