Sanco Valves Pvt. Ltd. Offers Forged Steel Valve with Integral Back Seat Bushing. Sanco Valves Pvt. Ltd. Supplies industrial valves. Forged Steel Valve with Integral Back Seat Bushing is suitable for use in petroleum refineries, chemical plants, and power generating plants and in a wide range of other industrial applications. Forged Steel Valve with Integral Back Seat Bushing is manufactured of superior materials for strength and durability. This valve incorporates the utmost in technology and design, plus quality control procedures that ensure strict adherence to applicable industry standards. It is available in 150 class.