Constraints from weak hadronic processes on left-right symmetric gauge theories

Using constraints from weak hadronic process we obtain bounds on the right handed gauge boson mass and the flavour changing neutral Higgs masses. The masses of these bosons are in the multi-TeV region. A fit to the quark mixing angle reveals no dramatic changes compared to the standard W-S model. We present some prediction for the (B^0 overline {B^0 }) system.