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when the sound waves incident into
it, it can cause gaps in the air
vibration; the viscous drag due to air
friction and pore walls, so that a
considerable part of the sound energy
into heat energy has been consumed.
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Dear friends, Hello, First of all , thank
you very much for your concern
of our products,In order to allow faster,
more timely for you to provide accurate
product and pricing and other information
materials,Please send us the inquiry,
inform us the following information.
Thanks!Provide samples give me, is the
best approach.
|
|
Size
|
Demand Quantity
|
Materials and density (weight per cubic
meter)
|
|
Drawings
|
Material Details
|
Useage and product color and
packaging requirements
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Details:
1.have good quality .
2.have different kinds of shapes and
different colors
3.Packing: according to customer's
request.
4.Special requirements on design, logo and
color are welcome. OEM design is
available
5.Super quality and competitive price are
ensured
6.Fashionable and attractive
promotional/gift/toy products.
7.Frankly speaking, it's really a good
choice for you
Advantages:
Factory directly sell,with high quality and
competitive price,And we use
environmental-friendly material,All items we
can make as customers requested.Such as
size,shape,color,material,packing,etc.
manufacturing experience for more
than *5 years.Strong production
capacity
