CELLPACK SHE 26-12 145604 是CELLPACK生产的SHE系列,CELLPACK SHE 26-12 145604 For very thick walls two wall ducts may be joined together. To seal the wall duct, we recommend our Putty/Sealing compound LG or universal sealing compound DUCT SEAL and to centre the wall duct to use our KZ centering aid, which consists of PE foam..