Quartet Thermal Engineering Pvt. Ltd. Manufactures Integral and Sealed Quench Plant. Quartet Thermal Engineering Pvt. Ltd. Supplies wide range of Heat Treatment Plants and Furnaces. The Integral and Sealed Quench Plant are designed complete with front loading table and back snake type pusher for complete sealed operation. The charge moving mechanism being out of the furnace enables easy maintenance of these parts. The Integral and Sealed Quench Plant is supplied complete with matching pre-heater, washing machine and tempering furnace.