The two-way opening and closing access door is mainly used between the equipment door of the rail transit track area and the side channel of the section with wind pressure requirements. The door must not only meet the Class A fire performance, but also meet the requirements of wind pressure airtightness, and at the same time Also equipped with effective safety monitoring facilities. The two-way opening and closing access door is composed of steel grade A fireproof and sound insulation door leaf, door frame and safety configuration, hardware, locks, etc. Each component is a mature series of matching systems, and each component has the characteristics of reasonable matching, easy installation and disassembly, and firmness. The fireproof limit of the two-way opening and closing side passage door is 1.5h.    

The fireproof sound insulation door is composed of door leaf, door frame and hardware accessories. It is made of high-quality cold-rolled steel plate, cold processed and formed. The door leaf is filled with non-combustible, fire-resistant, heat-insulating and sound insulation materials according to the fire-resistant grade. It adopts advanced technology, unique design and special production. The craftsmanship is a steel door with high-quality performance of fire prevention, sound insulation, escape, stable performance, and precision craftsmanship. The fire resistance and heat insulation of the fireproof sound insulation doors produced by our company ≥ 1.50h A1.50 (Class A); fire integrity ≥ 1.50h A1.50 (Class A). And has obtained the 3C "China National Compulsory Product Certification Certificate" issued by the Fire Product Conformity Assessment Center of the Ministry of Public Security.

Fire doors refer to doors that can meet the requirements of fire stability, integrity and heat insulation within a certain period of time. It is a fire partition with a certain degree of fire resistance, such as fire compartments, evacuation stairwells, and vertical shafts. In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of people. Classified by material: there are wooden fire doors, steel fire doors, steel-wood fire doors, other fire doors, etc. The company mainly produces single and double-leaf steel heat insulation fire doors. The fire performance has been approved by the Fire Products Conformity Assessment Center of the Emergency Management Department It is recognized that the fire performance has reached Class A, and the use of the 3C certification mark is permitted. The products are widely used in the evacuation passages of various urban public buildings!    

Sound insulation door is a noise reduction measure to prevent external noise from being introduced into buildings (such as auditoriums, theaters, etc.) and high sounds (such as symphony, singing, etc.) in buildings from spreading out. It is commonly used in noise control One of the sound insulation components is widely used in recording studios, broadcasting studios, performing arts halls, theaters, air compressor rooms, etc. for broadcasting, movies, TV, and audio products.

Insert a facility between the sound source and the receiver to make the sound wave propagate with a significant additional attenuation, thereby reducing the effect of noise in a certain area where the receiver is located. Such a facility is called a sound barrier. According to different uses, it can be divided into: railway sound barrier, highway sound barrier, urban landscape sound barrier, residential area noise reduction barrier, etc. According to the structure of the sound barrier, it is divided into a vertical sound barrier, a semi-enclosed sound barrier, and a fully enclosed sound barrier. The sound barrier is beautiful in appearance, exquisitely made, convenient for transportation and installation, low cost, and long service life. It is especially suitable for noise reduction projects on elevated highways, urban light rails and subways. It is the most ideal sound insulation and noise reduction facility for modern cities. The height of the sound barrier is generally between 1m and 5m, and the average noise reduction in the effective coverage area is 10-15dB (125Hz-4000Hz, 1/3 octave), up to 20dB. Generally speaking, the higher the sound barrier, or the farther away from the sound barrier, the better the noise reduction effect. Since its establishment, the company has developed a series of various sound barrier products, many of which have obtained national patents and national-level new products. Products are widely used in domestic rail transit, viaducts and highways and other projects.   Product part honor certificate    

Solar energy sound insulation, ventilation and energy-saving windows can solve your troubles and confusion! This product is a new environmentally friendly noise reduction product independently developed by the company. It adds a solar-driven fresh air system on the basis of the company’s existing sound insulation ventilation windows, while optimizing other functions. This product not only solves the problem of traditional windows only sound insulation The contradiction of non-ventilation also meets people's needs for health and environmental protection.