| http://www.w3.org/ns/prov#value | - Furthermore, the slits 152 of line of weakness 150 of disc 122 align with and are of same length as respective slits 52 of line of weakness 50 in rupture disc 22.A layer 64 of synthetic material such as Teflon or Mylar is interposed between disc 22 and disc 122 for blocking leakage of air or other fluids through the slits of lines of weakness 52 and 152 and each of the discs 22 and 122.
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