1 First, the sound-absorbing performance should meet the requirements for use. If it is required to reduce the high-frequency noise or reduce the high- and medium-frequency reverberation time, the medium-high-frequency sound absorption coefficient should be selected. If you want to reduce low-frequency noise or reduce the low-frequency reverberation time, you should use a material with a low-frequency sound absorption coefficient.
2 The sound absorption coefficient is not affected by the environment and time, and the material sound-absorbing performance should be stable and reliable for a long period of time.
3 Waterproof, moisture-proof, tamper-proof, anti-corrosion, anti-mildew, anti-bacterial, which is very important for use in wet environment conditions. Such as swimming pools, underground works and wet areas.
4 Fireproof performance is good, should have flame retardant, flame retardant or non-combustible properties. Non-combustible materials should be used as far as possible in public places such as theaters and subways.
5 sound-absorbing building materials must have a certain degree of mechanical strength, so that during handling, installation and use, it is not easy to damage, durable, not easy to aging.
6 The material has good machinability and light weight, and it is easy to be installed and replaced by maintenance. For large-scale light-weight roof structures such as large-span gymnasiums, the weight of sound-absorbing ceilings is a crucial constraint factor.
7 The sound-absorbing materials and their products will not cause dust, volatile odor, harmful radiation, or damage to human health during construction, installation and use.
8 The sound-absorbing material is generally installed on the interior surface. It is an important part of the interior design, especially the sound design of theaters, multi-function rooms, conference rooms, radio, television and film studios and auditoriums, etc. Sound-absorbing materials should have Decorative effect.
The present invention provides a multifunctional pull faucet, comprising: a faucet body, a drawing part is provided at the water outlet port thereof, and the drawing part is connected to a main channel, wherein at least three are provided in the faucet body A branch channel, and the three branch channels are all connected to the main channel. A multifunctional pull faucet provided by the present invention, wherein the hot water channel, the cold water channel and the water purification channel (pure water channel) are all connected to the main channel , And the main channel is connected with the drawing part on the main body of the faucet, so that the drawing part can obtain the water quality (hot water, cold water, purified water or pure water) required by different users, thereby improving the user experience, and , By integrating the hot water channel, cold water channel and pure water channel (pure water channel) into the main channel, the internal structure of the faucet is simplified, and the production cost of the faucet is reduced.
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Yuyao Zelin Sanitary Ware Co., Ltd , https://www.zelinshower.com