Оптовая продажа ISO9001 заводской звуковой барьерный забор

 Hightway or Railway and Residential acoustic noise barrier

Highway traffic noise has been of increasing concern to both the public and the government over the years. 

Fortunately, modern acoustical technology has been providing better ways to lessen the adverse impacts of highway traffic noise.

Common Noise Sources:

 Noise is unwanted sound. 

It is a pollutant and a hazard to human health and hearing. Noise levels are measured in decibels. 

The decibel (dB) is a unit which expresses the ratio of the sound pressure level being measured to a standard reference level. 

The higher the decibel level, the louder the noise. 

Sounds louder than 80 decibels are considered potentially harmful to the human ear. 

The noise chart below gives an idea of average decibel levels for everyday sounds around you.

Hightway or Railway and Residential acoustic noise barrier

Sound absorption theory:

acoustic panle is installed between the sound source and receiver to have a function of sound reduction. Obviously, railway noise absorptive wall is applied to railway to weaken the noise, so that the receiver zone would be affected smaller.

Noise barrier specifications:
Aluminum or steel sheet--sheet cutting--sheet punching--assembling--packing
1. Material (aluminum, galvanized steel sheet , etc), and the thickness .
    <as normal ,the thickness range from 0.5mm to 2.0mm>
2  Unit panel size : length ,width ,hight  <length(mm)*width(mm)*hight(mm)>
3  The post(column ) size :as normal ,we use the "H " Post as the international standard.
Applications:
1.highway noise absorptive wall
2.railway noise absorptive wall
3.residential area noise absorptive wall
4.industrial area noise absorptive wall 
 

Features:
1.Weather resistance
2. Fire retardant
3.Temperature property
4.Light weight

 Standard export packing,or as your require.

Shipping:
sample is by air Express, and large order is by sea.

Payment terms:

payment term:

1).100% irrevocable L/C at sight.

2).30% T/T prepaid and the balance against the copy of B/L.
3).30% T/T prepaid and the balance against L/C

Samples:
samples are available but you need pay for the sample price and freight fee.
the sample fee is returned after you place an order.
The delivert time is about 30days.

1>Reply your enquiry in 24 working hours.
2>Experienced staffs answer all your question in professional and fluent English.
3>Samples are available free.
4>Exclusive and unique solution can be provided to our customer by your own well-trade and professional engineers and staffs.
5>Special discount and protection of sales area provided to your distributor.

Established: 2006

Area: 50,000 square meter
Staff: 500

Sales Amount: 20,000,000.00 USD per year
Main Export Market:America ,Australia, Europe, Japan, USA, South American, etc.
Main Products: Wire mesh fence, Security fence, temporary fence, barrier fence, welded wire mesh,chain link fence.

 Q:Are you a manufacturer?
A: Yes,we have been in providing the professional products in this field for 15 years.
Q:What information should I provide,if I want a lowest quotation?
A:The material ,width,length,thickness,order quantity.
Q:How many days will the samples be finished?And how about the mass production?
A:Generally,5-7 days for samples of chain link fence making,the time of mass production depends on the quantity,18-20 days for 3-5 containers.