HOF Furniture Systems Pvt. Ltd. Offers Executive Chair with Aluminium Die-Casted Base. HOF Furniture Systems Pvt. Ltd. Is an ISO 9001:2008 certified company. The company also manufactures numerous high back and medium back premium chairs. Executive Chair with Aluminium Die-Casted Base under the model name Sli 472 or Slice has the seat and back made from high density U - foam. The chair has aluminium die casted Base with Knee Tilt Synchro Mechanism with any position lock. Executive Chair with Aluminium Die-Casted Base has adjustable arms with PU pad.