Tensor Consulting Engineers [Chennai] Pvt. Ltd. Supplies Doors and Dampers. Tensor Consulting Engineers [Chennai] Pvt. Ltd. Offers compressed air piping, waste collection system, H-Plants, etc. The Doors and Dampers are user friendly, while the damper blades are extruded aluminum and the frames are made out of GI. The doors are double skinned insulated doors made out of GI sheet with sheet metal frame. The doors are painted with polyurethane paint.