These new mattresses have their own characteristics. Do they represent the trend of future mattress development? Vice Chairman Zhu Changling of China Furniture Association believes that spring soft mattresses are still the first choice in the next few decades. Because the spring soft mattress technology is quite mature, with good breathability and impact resistance, its softness and support for the human body are the most reasonable and most comfortable. Nowadays, the spring soft mattress is still recognized as the future. The main mattress for decades. The ideal mattress is divided into five layers from bottom to top: spring, felt pad, mat, foam layer and bed fabric. At the bottom is a spring with high quality and advanced technology; the mat or felt pad ensures the mattress is strong and durable on the spring; the mat is up; the soft material such as latex or foam ensures the comfort and breathability of the mattress. It has the effect of sterilization and environmental protection; the top is environmentally friendly textile fabric. Such a spring soft mattress has the characteristics of warm winter, heat dissipation in summer, and easy to clean, and is more comfortable and humanized. Because the breathability of the mattress affects sleep health and comfort to a large extent, the breathability is important. Wastes, water vapors, etc. generated by people's metabolism during sleep will be continuously discharged through the skin. If the mattress is not breathable, these wastes cannot be released in time, which is very unfavorable to human health. In addition, a breathable mattress can also reduce the number of people turning over during sleep, prolong deep sleep time, and improve sleep quality. Waterbeds, foam mattresses, and air mattresses on the market today are not as breathable as spring soft mattresses. In the coming decades, the trend of the bed is a more humanized, automated multi-function spring soft bed. From the safety point of view, the bed legs are replaced by soft materials to avoid bumping injuries; the spring technology should be more advanced than the independent spring or continuous contactless longitudinal spring technology to ensure durability and no interference; in the fabric and The use of glue and lacquer meets environmental standards and completely avoids air pollution; the specification should be wide and wide, such as the length of 2 meters wide and 1.8 meters, which will be the mainstream; the automatic additional functions, such as with massage function, Temperature control function, built-in audio, lighting, etc. A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y RamÃrez, a Mexican priest and scientist, who described the device in 1790 in the Gaceta de Literatura Méxicana.[1] It consists of a valve connected to a hollow sealed float by means of a lever, mounted near the top of the tank. The float is often ball-shaped, hence the name ballcock. The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level rises, the float rises with it; once it rises to a pre-set level, the mechanism forces the lever to close the valve and shut off the water flow. This is an example of negative feedback and of proportional control. Ball Cock, Brass Ball Bibcock, Ballcock Valve, Toilet Ballcock Valve ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsirvalves.com