Unionized workers at the Terex Cranes Manufacturing plant in Waverly have gone on strike. 175 workers walked off the job Monday demanding better pay & benefits. Terex human resources manager Dave Stevenson says the latest contract with the United Auto Workers ran out last Friday.Stevenson says at least 52 non-union workers are still working at the plant and some, who had been laid off recently, may be called back. U-A-W Local 411 president Max Van Raden says the company has offered the workers small wages over the years while the company took in the profits.Van Raden says the workforce is older and the pensions are not what they should be.The union is asking for five percent annual raises, a full pension for those who work 30 years or more and free medical benefits for retirees.