  Abundances and $m_\bot$-spectra of strange and other hadronic particles
emanating from central 158-200 A GeV reactions between nuclei are found to
originate from a thermally equilibrated, deconfined source in chemical
non-equilibrium. Physical freeze-out parameters and physical conditions
(pressure, specific energy, entropy, and strangeness) are evaluated. Five
properties of the source we obtain are as expected for direct hadron emission
(hadronization) from a deconfined quark-gluon plasma phase.
