anti drop r amp; t.; r vertically movable window or t amp; t. amp; t.; warnings; gel

摘要

anti dropr & r for vertically.movable window or t & t. & t.; warnings; gel, thein a framework of gef and professional; hrt;their weight by at least one of a pulley fortifiedcounterweight offset is characterized as & w; the anlenkpunktthe weight - tackle on fensterfl & t.; gel in a an elevating force -the rasthebel (12) is provided.