A ground elastic strap for a compact flash card housing, for serving as a ground elastic strap of a connector inserted by a compact flash card, or inserted into a host housing, includes corresponding left and right elastic protruding pieces, so as to come into contact with a metal housing of a compact flash card when the compact flash card is inserted. The blocks are placed over a pipe through which oil or other fluid is escaping, so that the pipe is in their channels. The encapsulating mold has a pressing surface, a smooth surface and a cavity. The first and second zip slides are each combined with a respective portion of a coupling slide to form respective combined slides. 7 dlg and a melting temperature TmB of 150 to 170 C. The compaction member includes a compaction part attached to and extending laterally outwardly of the sleeve.