Вакуум шилэн давхар хөшигний хананы зах зээлийн хэтийн төлөв
As we all know, vacuum glass is a new type of energy-saving glass, which is composed of two or more pieces of flat glass, separated by a square array of supports with a height of 0.2mm between the glass plates. Low melting point solder is used around the two pieces of glass are sealed, one of the...
