Customer concern start with the overall finish of the product.In the rejected pieces, even the weld spatters were not removed, painting and surface finish was not industrial grade.We had sent some photos earlier….Iet me try to dig that out.2. Gear Train should be silent with cup and cone gears as in the original NJ15. This was the main complaint…..as the equipmentswere put in service, the unit had started making sound and vibrating.3. In terms of marking too, please refer the original NJ15. Hazardous area rating related markings should be on all electrical components as applicable, directions / torque levels / electrical connections marked as applicable, Model number and standard nameplates….