newly type of manhole cover fatigue testing machine is made by HRJ testing machine Co., Ltd, take advise of production from expert of multiple experiment, 1200kN manhole cover compression and fatigue test in one machine, manhole cover crack width auto test and deflection deformation auto test in one machine, 1.2 timed of high rigidity manhole cover loading frame, HRJ-Test manhole cover compression and fatigue test software, according to multiple standard method.