|All welding that was to be used in any UHV application had to be tested 100% to assure that the welds would not let helium atoms pass through. If an area was found to pass any atoms, the weld had to be re-done. There is no room for excuse or for error.
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310 1/2 W. Second Street, Winslow, AZ, US, 86047, 928-289-2568
Now Located on "The Mother Road", Historic Route 66