GDT550HGD Sound insulation
*'7+*' KDV DQ XSJUDGHG VRXQG SDFNDJH ,W LQFOXGHV D VRXQG EDIIOH XQGHU WKH PDLQ FRQWURO ER[ DQG D EHOORZV DW WKH ERWWRP RI WKH GRRU H[WHQGLQJ WR WKH UHDU RI WKH WRH NLFN %RWK PXVW EH LQ SODFH IRU WKH XSJUDGH WR EH HIIHFWLYH
*'7+*' KDV DQ XSJUDGHG VRXQG SDFNDJH ,W LQFOXGHV D VRXQG EDIIOH XQGHU WKH PDLQ FRQWURO ER[ DQG D EHOORZV DW WKH ERWWRP RI WKH GRRU H[WHQGLQJ WR WKH UHDU RI WKH WRH NLFN %RWK PXVW EH LQ SODFH IRU WKH XSJUDGH WR EH HIIHFWLYH