Horizontal vacuum annealing furnace is mainly suitable for stainless steel stretching parts such as plumbing equipment, water expansion parts, pins, medical equipment, stainless steel nails, stainless steel dowels, pressure riveting parts, stainless steel bearings, cases, straps, knives, miniature shafts, tapping self-drilling, cutlery, and other stainless steel products and magnetic materials, as well as other rare metal sheet materials in the protective atmosphere under the control of continuo