U.S. Tsubaki TRU Top chain uses a top-plate-riveted RS60 roller chain as its base with special provisions for curving. A float-prevention tab prevents floating at corners to allow the creation of curved conveyors. The same tab may also be used for inclined conveyors to keep the chain in position.

TRU
Top plates are made of 430 stainless steel.
Chains are carbon steel.
TRU-SS
All parts are made of 304 stainless steel.