LT (TL) column elastic sleeve pin coupling (instead of GB4323 GB4323-2002-2002) column elastic sleeve pin coupling is the use of one set of elastic sleeve pin (rubber) column, in a two and a half coupling flange hole, so as to realize the connection of two half-coupling.Column elastic sleeve pin coupling coupling was once the most widely used in our country, as early as the late 1950 s, which is for the mechanical standards, JB08-60 elastic dowel pin coupling, is China's first standard coupling.
