Natural ventilation without power stainless steel manufacturers [sun] natural ventilation without power prices by natural ventilation of indoor and outdoor atmospheric pressure (air flow) and temperature to determine the ventilation ventilators. Features: Small size, ventilation affected by the environment, noise less effective, can not enter the interior of fresh air for dust removal processing. 1, energy saving, environmental protection: no power consumption, no new noise sources, sustainable ventilation; 2, ventilation volume: a large area air exchange channel design, and adjustable ventilation; 3, heat insulation performance is good: Housing aluminum alloy, interior caulking insulation, heat insulation, sound insulation effect is better; 4, no maintenance: structural design is reasonable, non-powered components, spare parts no rust all possible; 5, noise reduction: air passages There are structural design and noise reduction sound deadening material, can minimize interior noise; 6, easy to install: no matter the installation, structural design, material selection and other aspects are fully taken into account the different usage, security, high reliability; 7 , insects, dust: Ventilation channels on pest control, dust network; 8, beautiful: now nothing more than the screw head, no protruding parts, its stepless adjustment mode can be turned on circumstances under pressure regulator into the wind. Power ventilation brought by its own power system, take the initiative to exchange indoor and outdoor air ventilators. Features: (in Catalan company product description) one can control the amount of ventilation, ventilation time. 2 can be mounted remote control, you can install negative ion generator (to improve air quality). 3 due to special sound insulation inside, so isolating the high frequency impatient tone, the effect is significant. 4 Dust effect is obvious. Common characteristics: not open the window you can let your room for free-breathing, discharge of polluted indoor emissions, isolated impatient tone. Ventilation and effective solution to the dilemma of impatient tone. Power ventilation: the driving force of the ventilation system. Remote ventilators: the driving force and the remote system noise ventilators. Remote power noise ventilators: refers to the driving force of the system and is equipped with sound-absorbing material with remote control ventilators. Sunlight Stainless Steel Co., Ltd. specializes in producing Liaocheng Free Electricity - roof ventilation products, with large and medium-sized stamping equipment more than 20 sets. Several researchers have ventilators, Model no power ventilators, non-powered fan, roof ventilators, stainless steel ventilators, exhaust hood and all kinds of special-shaped ventilation, a professional installer. Welcome customers to visit counterparts. In recent years, the company engineering and technical personnel of the joint efforts of the factory production of free electricity - roof ventilation is currently the most specifications, most complete variety of manufacturers. Of which 300, 360, 450 is mainly used for residential buildings, villas building roof ventilation mouth, 500, 600, 680 is mainly used for factory workshop and large public places to use exhaust ventilation. All stainless steel body, cast aluminum support special double sealed bearings. Product sales over the surface of the country, world-class service. Tel: 13906356805 Website: www.sdygbxg.com