Welding Tables, Stages, and Tools: After pre-weld cleaning and until the completion of welding, all tables used to store or stage weldments and components shall be made of stainless steel. All surfaces of tools, rotary stages, or other devices that come in contact with weldments shall be made of stainless steel or aluminum. In order to prevent scratches and dings on near net shape components, Teflon covered stainless or aluminum tables may be used.