China large scale speed reducer for coal mine machinery

We can accept and provide various kinds of castings, the material can be cast iron, cast steel, cast aluminum/aluminium, the casting technology can be clay sand cast, sodium silicate(water glass) sand cast, resin sand cast and so on. We can cast the castings according to samples, drawings.
material:30MnSiMo; ZG45#casting tolerance:+-0.5melting furnace:electric-arc furnacemachining tolerance:+-0.5casting techonogy:water glasscasting finish (Ra.):6.3annealing process:yesmachining finish (Ra.):≤3.2
A view of our factory: