sổ tay kỹ sư công trình
Sổ tay kỹ sư cơ khí P5 doc
Ngày tải lên :
04/07/2014, 00:20
... and the
packing gland. This extension
is gas filled so
that
the
packing gland temperature stays close
to
ambient.
For
low-speed bearings babbitting
is
usually acceptable,
as is
graphite
...
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