must be translated as Fried Dough Twists.  The styles of large stainless steel slides for indoor and outdoor use are diverse, including half-tube slides, full-tube slides, spiral S-shaped slides, straight slides, and intersecting twisted spirals. Designers can also customize slope slides based on the specific site provided by clients. Stainless steel slides are primarily used in recreational areas such as offices, shopping malls, parks, kindergartens, and gardens.

The key technical aspects of manufacturing large stainless steel slides lie in the welding and polishing processes. Welding here refers to the forces applied to butt welds and fillet welds in the following scenarios: connecting different steel plates, plate welds, and welds on the edges of holes with a length of 100 mm, intersecting or not less than 100 mm, overlapping or adjacent seam welds. Due to improper arrangement of stainless steel slide welds or unavoidable welding issues, stress concentration and structural weld cracks can easily occur. Hidden welds refer to butt welds and fillet welds that cannot be inspected under pressure after manufacturing or assembly, such as welded axes of slides and movable internal welded structures made of glass fiber reinforced plastic or other materials. It is difficult to inspect the passenger mechanism structure, safety pressure rod welding, and other components.

If the stainless steel slide fails to be welded, it may cause personal injuries to passengers, such as the weld seam axis, root weld of cantilever beams, butt welds and welds between railways and railway supports, large combined slide bearings or bearing welds, connections between supports or pillars, passenger transport equipment and equipment body structures, crane accessory welding, welds and seat support members (including hanging beams or attached welds), mechanical shafts, shaft wheel systems and supports between welds, oil (gas) cylinder bearing welds, safety accessories (some), rotating joint welds, weld seam balance, cockpit (weight) and boom connection welding, lifting mechanism (including pulleys) connection to structures, tower contact welds, main shaft and gear fixing welds, wire rope anchor node welds, safety devices such as safety struts and braking equipment body welding and connections with other structures or components under dynamic load effects, as well as special welds, hidden welds and primary welds certified by design documentation organizations.