... technology, core power, better core, solar better polar super cold tube, the colder the winter,the stronger it is. Space technology ... Core” ultra-low emission technology, through the super scale vacuum tube line production. film retia structure get maximum optimization. It is ... integrated solar water heater.Pipeline is made of 3.3 borosilicate glass with GB/ T2436 - 99 (ISO4803-1978) standard. It has ...