タイトルまたは説明

1.patent technology:it is halumm's patent technology and protected by the national patent right ***** blind installed in the middle of the two pieces of glass:it could be turned over **0 degree in order to adjust the line of sight and save energy ***** electric blind:it adopts imported or high quality local made eletromotor and could be turned over **0 degree or go up and down so as to get enough light and keep privacy