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Home > Jay Chou's new song safety helmet

Jay Chou's new song safety helmet

Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.

Why choose us

Solutions to meet different needs

Solutions to meet different needs

We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.

Highly specialized team and products

Highly specialized team and products

Professional team work and production line which can make nice quality in short time.

We trade with an open mind

We trade with an open mind

We abide by the privacy policy and human rights, follow the business order, do our utmost to provide you with a fair and secure trading environment, and look forward to your customers coming to cooperate with us, openly mind and trade with customers, promote common development, and work together for a win-win situation.

24 / 7 guaranteed service

24 / 7 guaranteed service

The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems

Certificate of honor


CONTACT USCustomer satisfaction is our first goal!

Consultation hotline:0086-15900663312

Address:No. 3888, Hutai Road, Baoshan District, Shanghai, China

Jay Chou's new song safety helmet

High-Performance Professional Earmuffs Sound Insulation ...

High-Performance Professional Earmuffs Sound Insulation ...

High-Performance Professional ,Earmuffs Sound Insulation Value, NRR 34dB ANSI S3.19 & EN352 Test Authenticated [Parallel Import Goods]: Home: Amazon.com.au

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AHEART Soundproof Earmuffs Work Study for Earmuffs Sound ...

AHEART Soundproof Earmuffs Work Study for Earmuffs Sound ...

AHEART Soundproof ,Earmuffs, Work Study for ,Earmuffs Sound Insulation Value, of 31dB: Amazon.com.au: Home Improvement

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Highest NRR (Noise Reduction & Decibel Rating) Earplugs in ...

Highest NRR (Noise Reduction & Decibel Rating) Earplugs in ...

NRR is measured in decibels (db) and tells you how much the hearing protection is lowering the ,sound, level prior to it reaching your ears. So for example if you are at a concert that has an ,average, noise level of 100db and you are wearing hearing protection with 30db then the noise level reaching your ears would be …

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1 Pair Ear Pads Memory Foam Cushion Earmuffs Protein ...

1 Pair Ear Pads Memory Foam Cushion Earmuffs Protein ...

1 Pair Of Sponge ,Earmuffs,. Ear foam will improve bass performance of your headphones. The ear pad is round, the appearance is about 5CM 5.5CM 6CM 6.5CM 7CM 7.5CM 8CM 8.5CM 9CM 9.5CM 10CM 10.5CM. Colour: Black (As pictures show).

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AHEART Soundproof Earmuffs Work Study for Earmuffs Sound ...

AHEART Soundproof Earmuffs Work Study for Earmuffs Sound ...

AHEART Soundproof ,Earmuffs, Work Study for ,Earmuffs Sound Insulation Value, of 31dB: Amazon.com.au: Home Improvement

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High-Performance Professional Earmuffs Sound Insulation ...

High-Performance Professional Earmuffs Sound Insulation ...

High-Performance Professional ,Earmuffs Sound Insulation Value, NRR 34dB ANSI S3.19 & EN352 Test Authenticated [Parallel Import Goods]: Home: Amazon.com.au

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The 5 Best Noise Reduction Earmuffs Review - NoisyWorld

The 5 Best Noise Reduction Earmuffs Review - NoisyWorld

After prolonged use, the ear cushions of any ,earmuffs, will wear out and the ,insulation, foam inside the cups can get dirty or deteriorate. Both the ear cushions and the ,insulation, foam are user-replaceable and readily available for purchase in a hygiene kit.

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Recommended Home Insulation R–Values - Energy Star

Recommended Home Insulation R–Values - Energy Star

Recommended Home ,Insulation, R–,Values,. ,Insulation, level are specified by R-,Value,. R-,Value, is a measure of ,insulation,’s ability to resist heat traveling through it. The higher the R-,Value, the better the thermal performance of the ,insulation,. The table below shows what levels of ,insulation, are cost-effective for different climates and ...

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lectronic Shooting Earmuff Sport Sound Amplification ...

lectronic Shooting Earmuff Sport Sound Amplification ...

The built-in orienteering microphone can amplify the range instructions and other ambient sounds to a secure 82 dB, providing more natural listening and enhanced communications. Active monitoring and auto-close amplification when the ambient sound reaches 82 dB.With noise reduction level (NRR) of …

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All About Insulation R-Values - The Home Depot

All About Insulation R-Values - The Home Depot

Find your zone on the map and then use the above ,insulation, R-,value, chart to determine the level of ,insulation, you need to properly insulate your attic, walls, floors and crawlspaces. These R-,values, are a sum, meaning this should be the total R-,value, once you add up the entire depth of ,insulation,.

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What Is Noise Reduction Coefficient (NRC) And Sound ...

What Is Noise Reduction Coefficient (NRC) And Sound ...

17/2/2020, · It is derived from the ,sound, attenuation ,values, tested on the frequency range of 125 Hz to 4000 Hz and it measured the deduction rate of the sounds in the dB scale. If a ,sound, coming from the other side of the wall is a 30 dB but after passing through isolation or wall it reduces to 10 dB that means the STC rating of the wall is 20.

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A Guide to Buying Electronic Ear Muffs :: Guns.com

A Guide to Buying Electronic Ear Muffs :: Guns.com

The Tactical Sport’s NRR of 20 is a little low, but they have higher end models as well. The audio jack allows connectivity with cell phones and MP3 players. These Peltors, which are marketed ...

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Earmuffs - Wikipedia

Earmuffs - Wikipedia

Cold Weather History. Thermal ,Earmuffs, were invented by Chester Greenwood of Farmington, Maine in 1873, at the age of 15. He reportedly came up with the idea while ice skating and he asked his grandmother to sew tufts of fur between loops of wire. His patent was for improved ear protectors. He manufactured these ear protectors, providing jobs for people in the Farmington area for nearly 60 years.

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Highest NRR (Noise Reduction & Decibel Rating) Earplugs in ...

Highest NRR (Noise Reduction & Decibel Rating) Earplugs in ...

NRR is measured in decibels (db) and tells you how much the hearing protection is lowering the ,sound, level prior to it reaching your ears. So for example if you are at a concert that has an ,average, noise level of 100db and you are wearing hearing protection with 30db then the noise level reaching your ears would be …

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High-Performance Professional Earmuffs Sound Insulation ...

High-Performance Professional Earmuffs Sound Insulation ...

High-Performance Professional ,Earmuffs Sound Insulation Value, NRR 34dB ANSI S3.19 & EN352 Test Authenticated [Parallel Import Goods]: Home: Amazon.com.au

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% AVANTEK Soundproof earmuffs Sound insulation value 34 dB ...

% AVANTEK Soundproof earmuffs Sound insulation value 34 dB ...

Jun 27, 2020 - % AVANTEK Soundproof ,earmuffs Sound insulation value, 34 dB...

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Thinsulate™ Acoustic Insulation

Thinsulate™ Acoustic Insulation

A Data is representative of ,average values, of stock before converting; it in cludes scrims and adhesives as appropriate. B Weight is the mass per unit area of the entire absorber composite. C . Nominal thickness is measured using a 12 in² plate with 0.002 psi applied to the sample. D . R-,Value, (ft. 2

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Best Safety (Noise Reduction) Ear Muffs 2018: Reviews & Guide

Best Safety (Noise Reduction) Ear Muffs 2018: Reviews & Guide

Since sounds from machinery, gunshots, airplane, human speech etc fall under different frequency ranges, it is important to know whether your ,earmuffs, are good at cutting the ,sound, that you want to cut and, if required, letting you hear the ,sound, that you want to hear.

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