By A Mystery Man Writer
An O-ring is a torus, or doughnut-shaped ring, generally molded from an elastomer, although O-rings are also made from PTFE and other materials.
6in (152.4mm) Sealing O-Ring tightly secures the Latex Membrane around the soil specimen in Triaxial Cells or Flexible-Wall Permeability Test Cells.
6in Sealing O-Rings
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