In accordance with the national standard Fire Dampers for Building Ventilation and Smoke Extraction Systems GB15930-2007, fire 3C fire dampers need to test 12 items of the product, including "appearance, tolerance, driving torque, reset function, temperature sensor control, manual control, electric ......
Read MoreAccording to the national standard of Fire Dampers for Building Ventilation and Smoke Extraction Systems GB15930-2007, the inspection rules of 3C fire dampers are "factory inspection and type inspection". Henan Shuangxin fire damper manufacturer explains them one by one.
Read MoreFire valve is a common fire fighting product in the ventilation and air conditioning system of industrial and civil buildings and underground buildings. And 3C fire valve, is taking into account the premise of fire safety, fire valve products to do the fire requirements.
Read MoreAnti-corrosion and explosion-proof axial fan is widely used because of its wide application range, high efficiency, low energy consumption and other advantages. This fan is composed of several parts, each part has its own function, and the bearing is one of the important parts, the operation of the ......
Read MoreAnti-corrosion and explosion-proof axial fan is widely used because of its wide application range, high efficiency, low energy consumption and other advantages. This fan is composed of several parts, each part has its own function, and the bearing is one of the important parts, the operation of the ......
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