الوصف

vacuum collector tube features being described as follows: 1)all glass hard borosilicate:3.3 2)high efficient selective absorption coating: SS-C/CU&AL/N 3)size of vacuum tube:*7mm****0mm and *8mm****0mm and *0mm****0mm the concrete specification as follows: Model:AJ*7/***0 AJ*8/***0 AJ*0/***0 Specification: 1) Glass material: Borosillicate glass 3.3 2) Glass thickness:1.6mm 3) Absorption coefficient more than*0%(*2%) 4) Aborbtive coating:SS-C/CU&A;/N 5) Emission coefficient :less*0%(8%) 6) Vacuum:less than 5****2 Pa 7) Stagnation temperature: mor than**0 Celsius 8) Hail resistance:*5mm 9) Freezing resistance:**5 Celsius