The appearance of the film-coated steel door is better, because it is covered according to the needs of the user, and the color and pattern can be customized, so it feels more decent, but the price is also more expensive.
This kind of door is made of film-coated steel plate, so it is called steel door. The film-coated steel coiling machine is cut into strips, and then continuously rolled into closed door special-shaped pipes by cold bending, and then further processed into steel doors.
Common thermal insulation materials used for steel doors include: glass wool board, polyurethane materials, etc., with low heat transfer coefficient, and clean doors have better thermal insulation effect. The coated steel plate is made of steel plate and professional design and extrusion molding. Therefore, the clean door has the characteristics of thermal insulation structure.
Steel doors are a common product in building materials, not only can be good flame retardant and sound insulation. The steel rock wool sandwich panel door is made by pressing the upper and lower metal panels and the middle polymer heat insulation inner core.
Studies have shown that the warranty period of color steel plates treated with special coatings is 10-15 years.
