... contains 4 parts: 2 HUBs, 1 metal seal ring, 1 pair clamps, 4 sets of bolts and nuts.2\ ... Seal ring's function:P-LOC seal ring looks small, ... forces them against the seal ring rib.3\Seal ring material:As the seal ring is the most important ... connector, we are strict and discreet in choosing seal ring material. We learn about customers' working conditions, such ...