The present invention disclosed herein provides a transportable recycling center that has a container and a partition within the container. The device comprises: a glass supporting beam having a special cross section, which has a base portion for rooting the fixing nails and two shoulders for supporting two adjacent glasses; a pressing bar inserted into the side seam of the hollow gum-sandwiched glass having a bar-like slot; and a pressing block fixed on the base portion having a pressing head extending into the bar-like slot. two consecutive bends are manufactured close to the end of the pipe due to the need of space of the connector, in order to move the end of the pipe in parallel to a certain distance from the level of the pipe layer. A second sealing member is arranged around the communication path so as to seal the space inside the communication path from a space defined by the clearance on a side close to the second valve seat. The loudspeaker also includes a shutter that is supported by the housing and is displaceable between a first, closed position in which the shutter substantially covers the transducer, and a second, open position in which the transducer is exposed.