Jamshedji Construction Machinery Co. Manufactures Electric Motor Surface Finishing Equipment. Jamshedji Construction Machinery Co. Is an ISO 9001: 2008 certified company offering a wide range of construction machines like pumps, mixers, cutters, rollers, rammers and vibrators. The Electric Motor Surface Finishing Equipment is powered by a standard 3.0 H.P electric motor and is used to polish the surface after floating operation. The Electric Motor Surface Finishing Equipment comes with two passes suitable for non-dusting floors and is also available with spare trowel blades.