На об'ємних резонаторах
[caption id="attachment_2142" align="alignnone" width="64"]
HORWIN DF-U6-5[/caption]
[caption id="attachment_2142" align="alignnone" width="64"] HORWIN DF-U4-5[/caption]
[caption id="attachment_2142" align="alignnone" width="64"] HORWIN DF-V6-5[/caption]
[caption id="attachment_2142" align="alignnone" width="64"] HORWIN DF-V4-5[/caption]
