Cable tray welding enhances the durability of installations, reducing risks associated with mechanical failure. Many manufacturers use it to produce cable trays, food trays, wire baskets, and other industrial storage products. Because stainless steel has excellent corrosion resistance. According to an embodiment of the present invention, a method to weld a cable tray support, which is capable of improving convenience of welding by forming a bonding surface on the lower part, comprises: a welding position selecting step of selecting a welding position of a cable tray support; a. -piece tray istypically used in applications where visual esthetics are important. It is available with a ventilated or solid bottom. Channel tray can protect against. Welded wire mesh cable trays are open-grid support systems engineered from high-strength steel wires—Q235B carbon steel (mechanically equivalent to ASTM A36) or 304/316 stainless steel—precision-welded into 50×100mm (~2×4") or 100×200mm (~4×8") grids with >90% open area. Unlike enclosed trays. Spot welding is a technique where two or more metal surfaces are joined by applying pressure and heat from an electric current to the exact spot where they intersect. Advantages of Spot Welding in Wire Mesh.