Rainbow: China's First-Level Thread Rolling Machine Manufacturer Leading the Industry with Innovation and Precision

Rainbow Expands Heat Treatment Capabilities with Advanced Mesh Belt Furnace for High-Quality Screws, Bolts and Fasteners

About salt quenching furnace

Salt bath quenching is a metal heat treatment process in which a workpiece, after being austenitized by heating, is immersed into molten salt liquid at a specific temperature for rapid cooling (quenching) to achieve the required microstructure and properties.

Revolutionize Bolt Production with Our Cutting-Edge Bolt Forging Machine – Your Path to Market Leadership

Boost Your Bolt Production Efficiency with Our High-Performance Bolt Forging Machine

Changing Heat Treatment Demand in the Indian Market

Changing Heat Treatment Demand in the Indian Market