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Home > jsp bump caps login page

jsp bump caps login page

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

jsp bump caps login page

The 5 Best EarMuffs for Sleeping In 2020- Guide to ...

The 5 Best EarMuffs for Sleeping In 2020- Guide to ...

26/4/2020, · ,Earmuffs, Feature: Our Rating: Pro For Sho 34dB Shooting Ear Protection: Industrial-grade ,earmuff, for ,sound, protection during gunshot training, woodworking, hunting and study: 9.5/10: Snug Kids ,Earmuffs, / Best Hearing Protectors: Foldable and perfect for protection against crowd noises, and common environmental noises in homes. 9.5/10

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Evaluation of green walls as a passive acoustic insulation ...

Evaluation of green walls as a passive acoustic insulation ...

1/3/2015, · 2.2.1. Measurement of airborne ,sound insulation,. The measurement and calculation of the ,sound insulation, properties of building elements is regulated by UNE-EN ISO 10140-2 standards. The separation elements can be between two different rooms, such as doors or partitions, or between the indoors and outdoors, such as walls, windows, etc.

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Saver H6A Professional Sound Insulation Noise-reducing ...

Saver H6A Professional Sound Insulation Noise-reducing ...

Saver H6A Professional ,Sound Insulation, Noise-reducing ,Earmuffs,: Amazon.ca: Electronics. Skip to main content.ca Hello, Sign in. Account & Lists Account Returns & Orders. Try. Prime Cart. Electronics. Go Search Hello Select your address ...

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Everything You Need to Know About Insulation's R-Value

Everything You Need to Know About Insulation's R-Value

Floor ,Insulation,: While there are additional considerations—such as venting and moisture problems—to take into account when you insulate under floors, the United States Department of Energy recommends an R-25 rating in cold climates and an R-11 in warmer parts of the country. Comparative ,Insulation, R-,Values,. The R-,value, per inch for different types of ,insulation, varies depending on the ...

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INVESTIGATION OF USABILITY OF RECYCLED MATERIALS IN ...

INVESTIGATION OF USABILITY OF RECYCLED MATERIALS IN ...

EN 352-1 standards and has ,sound, attenuation ,value, of SNR 23 dB has been tested and according to the obtained result, the maximum ,sound, attenuation ,value, of the conventional ,earmuffs, is measured as 24 dB, and the minimum ,sound, attenuation ,value, is measured as 21 dB. The ,average sound, attenuation ,value, was determined to be 22.2 dB. melamine ...

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The 5 Best EarMuffs for Sleeping In 2020- Guide to ...

The 5 Best EarMuffs for Sleeping In 2020- Guide to ...

26/4/2020, · ,Earmuffs, Feature: Our Rating: Pro For Sho 34dB Shooting Ear Protection: Industrial-grade ,earmuff, for ,sound, protection during gunshot training, woodworking, hunting and study: 9.5/10: Snug Kids ,Earmuffs, / Best Hearing Protectors: Foldable and perfect for protection against crowd noises, and common environmental noises in homes. 9.5/10

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Evaluation of green walls as a passive acoustic insulation ...

Evaluation of green walls as a passive acoustic insulation ...

1/3/2015, · 2.2.1. Measurement of airborne ,sound insulation,. The measurement and calculation of the ,sound insulation, properties of building elements is regulated by UNE-EN ISO 10140-2 standards. The separation elements can be between two different rooms, such as doors or partitions, or between the indoors and outdoors, such as walls, windows, etc.

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Everything You Need to Know About Insulation's R-Value

Everything You Need to Know About Insulation's R-Value

Floor ,Insulation,: While there are additional considerations—such as venting and moisture problems—to take into account when you insulate under floors, the United States Department of Energy recommends an R-25 rating in cold climates and an R-11 in warmer parts of the country. Comparative ,Insulation, R-,Values,. The R-,value, per inch for different types of ,insulation, varies depending on the ...

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What Is the Noise Reduction Rating (NRR) and How to Use It?

What Is the Noise Reduction Rating (NRR) and How to Use It?

The NRR is then calculated from the means (using two standard deviations) in this attenuation table, assuming pink noise with a ,sound, level of 100 dB at each frequency. Note that while the ,earmuffs, and earplugs in the example above have almost the same noise reduction rating, there is a marked difference between the two at different frequencies.

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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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What Is the Noise Reduction Rating (NRR) and How to Use It?

What Is the Noise Reduction Rating (NRR) and How to Use It?

The NRR is then calculated from the means (using two standard deviations) in this attenuation table, assuming pink noise with a ,sound, level of 100 dB at each frequency. Note that while the ,earmuffs, and earplugs in the example above have almost the same noise reduction rating, there is a marked difference between the two at different frequencies.

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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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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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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 ...

Get Price
Saver H6A Professional Sound Insulation Noise-reducing ...

Saver H6A Professional Sound Insulation Noise-reducing ...

Saver H6A Professional ,Sound Insulation, Noise-reducing ,Earmuffs,: Amazon.ca: Electronics. Skip to main content.ca Hello, Sign in. Account & Lists Account Returns & Orders. Try. Prime Cart. Electronics. Go Search Hello Select your address ...

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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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INVESTIGATION OF USABILITY OF RECYCLED MATERIALS IN ...

INVESTIGATION OF USABILITY OF RECYCLED MATERIALS IN ...

EN 352-1 standards and has ,sound, attenuation ,value, of SNR 23 dB has been tested and according to the obtained result, the maximum ,sound, attenuation ,value, of the conventional ,earmuffs, is measured as 24 dB, and the minimum ,sound, attenuation ,value, is measured as 21 dB. The ,average sound, attenuation ,value, was determined to be 22.2 dB. melamine ...

Get Price