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Home > Why do friends sell hard hats

Why do friends sell hard hats

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

Why do friends sell hard hats

The Labour Department and the Occupational Safety and ...

The Labour Department and the Occupational Safety and ...

Safety Helmets, with Y-type Chin Straps Sponsorship Scheme for Small and Medium-sized Enterprises of ,Construction Industry, ” ,Safety helmet, is personal protective equipment that must be worn by ,construction, workers while at work. ,Safety helmet, must be …

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

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

17/2/2020, · Noise reduction coefficient in short term also known as NRC is a logarithmic average attenuation or decay rate (dB/s) of sound frequencies in the range of 250,500,1000 and 2000 Hz by any sound-absorbing object in an area compared to the area where no sound-absorbing material available. In simple term value of NRC specify the ability of any material ...

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Sound Blocking Ear Muffs and Soundproofing Headsets for ...

Sound Blocking Ear Muffs and Soundproofing Headsets for ...

Super Soundproofing Co™ is a leading provider of ,sound, blocking ,ear muffs,, light weight soundproofing headsets/,earmuffs, for control acoustical noise and ,sound,. ... Almost the BEST!The NRR in ,dB, is 25, ... Over Head -Wide frequency reduction up to 37.4 Highest ,average sound, blocking.

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Are There Any Earplugs or Earmuffs That Block All Sound ...

Are There Any Earplugs or Earmuffs That Block All Sound ...

The attenuation from 125 to 500 Hz ranged from 38 to 45 dB for deep insertion with the 3M EAR Classic foam earplugs. For standard insertion it was about 6 dB less and for partial insertion it was 18 – 20 dB less. (own estimate from the charts) Note that these were cylindrical foam earplugs.

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The 5 Best Noise Reduction Earmuffs Review - NoisyWorld

The 5 Best Noise Reduction Earmuffs Review - NoisyWorld

25/1/2019, · (Sound conducted through your skull limits how much you can reduce noise, so even higher-rated muffs will not get you much further in your scenario, but noise masking with white noise can help.) Finally, as you have mentioned, your earmuffs claim (!) to reduce noise by 37 dB.

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Safety helmet for construction industry | High-Quality ...

Safety helmet for construction industry | High-Quality ...

Safety helmet, for head protection in ,construction, site. ,Safety helmet, for head protection in ,construction, site. Photos Graphics Templates Web Themes Fonts Add-Ons ...

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Audiometer - rion.co.jp

Audiometer - rion.co.jp

Hearing Level: -10 to 90 ,dB,, 5-,dB, step ,Average Sound insulation, value ,of earmuff, Environmental Noise Monitor Possible for Measurement (Green light is lit.): 1000 Hz: 30 ,dB, or less, 4000 Hz: 30 ,dB, or less Caution needed for measurement (Yellow light is lit.): 1000 Hz: 30 to 37 ,dB, or less, 4000 Hz: 40 to 50 ,dB, …

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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, · You need to consider the average noise level of where you will use the earmuffs mostly. If for instance you are practicing shooting, you may need earmuffs rated at 20dB just to protect your ears from sounds of small caliber guns. If you plan on shooting indoors, …

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BRINKO Tools | Ear muffs | purchase online

BRINKO Tools | Ear muffs | purchase online

Ear muffs, - • ,average sound insulation, • fully insulated plastic design • SNR (averaged ,sound insulation,) 24 ,dB, • frequency ranges:   H (high) 27 ,dB,   M (medium) 20 ,dB,   L (low

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Newest Anti-noise sound insulation earmuffs Prevent noise ...

Newest Anti-noise sound insulation earmuffs Prevent noise ...

Newest Anti-noise ,sound insulation earmuffs, Prevent noise sleep: Amazon.in: Home Improvement. Skip to main content.in Hello, Sign in. Account & Lists Account Returns & Orders. Try. Prime Cart. Tools & Home Improvement. Go Search Hello Select your ...

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