... as follows:1. Quench for various hardware and tools, such as plier, wrench, hammer, ax, screwing tools and shear (orchard shear).2.Quench ... 4. Quench for machine tools, such as lathe deck and guide rail.5. Quench for various hardware metal parts and machined ... the same material or different materials.1. Welding of various hardware cutting tools, such as diamond tool, abrasive tool, drilling tool, alloy ...