Результаты (
английский) 3:
[копия]Скопировано!
What type glass is used in your sidelights?
What is the percentage of losses light stream in this glass?
what is its thickness (is checked whether it is on the strength/impact) ?
As well as securing glass in lamps (whether you use glue in addition seals)?
переводится, пожалуйста, подождите..