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Home > Before using the helmet

Before using the 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

Before using the helmet

Polypropylene (PP) Plastic: Types Properties Uses ...

Polypropylene (PP) Plastic: Types Properties Uses ...

8/9/2020, · ,Polypropylene,, High Melt Strength (HMS ,PP,)– It is a long chain branched ,material,, which combines both high melt strength and extensibility in the melt phase. ,PP, HMS grades have a wide mechanical property range, high heat stability, ,good, chemical resistance.

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Best cycling helmets 2020 for protection reviewed| Cyclist

Best cycling helmets 2020 for protection reviewed| Cyclist

As a ,helmet, is first and foremost a safety item, a ,good, fit is of paramount importance. Make sure your preference is snug on your noggin and sits square and straight.

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Polypropylene - Wikipedia

Polypropylene - Wikipedia

Polypropylene, (,PP,), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.. ,Polypropylene, belongs to the group of polyolefins and is partially crystalline and non-polar.Its properties are similar to polyethylene, but it is slightly harder and more heat resistant.

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Materials Used in Motorcycle Helmets | FortNine Canada

Materials Used in Motorcycle Helmets | FortNine Canada

Meanwhile, the foam absorbs as much of the impact as possible, so your head doesn't have to. Lastly, the soft padding ensures a ,good, fit against your head. The difference between basic and advanced ,helmets, normally lies in the shell . In contrast, a wide variety ,of helmets, …

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HTEC expanded polypropylene (epp)-the Leading epp Supplier

HTEC expanded polypropylene (epp)-the Leading epp Supplier

The shell manufacturing mainly includes ,helmet, shell and inner shell ,materials,. The inside of the ,helmet, is a buffer layer, mostly made of EPS (expandable polystyrene) or EPP (expanded ,polypropylene,). EPS is more common. EPP ,material, is modified by ,PP, and is widely used. EPP ,material helmet, Mostly high-end ,helmets,.

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Difference Between Polypropylene and Polycarbonate ...

Difference Between Polypropylene and Polycarbonate ...

18/8/2017, · ,Polypropylene, is a well-known thermoplastic elastomer that has ,good, temperature resistant properties. ,Polypropylene, is used for manufacturing trays, funnels, bottles, carboys, pails and instrument jars that need to be sterilized frequently in order to be used in the clinical environment.

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What Materials are Used for a Automobile Bumpers | First ...

What Materials are Used for a Automobile Bumpers | First ...

15/12/2018, · ,Polypropylene, is a thermoplastic polymer used in a wide ... PVC has ,good, flexibility, is flame retardant, and has ,good, thermal ... impact, optical, electrical and thermal properties. Because of its extraordinary impact strength, it is the ,material, for car bumpers, ,helmets, of all kinds and bullet-proof glass substitutes ...

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Best Helmets For Cricket Champs | HotDeals360

Best Helmets For Cricket Champs | HotDeals360

3/11/2020, · The ,helmets, in the listicle below also provide a comfortable experience to users as they are cushioned using high-quality foam. List of Best Cricket ,Helmets, 1. SG Optipro Cricket ,Helmet,. The outer shell of the ,helmet, is made with high-impact resistant ,polypropylene,.

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Materials Used in Motorcycle Helmets | FortNine Canada

Materials Used in Motorcycle Helmets | FortNine Canada

Meanwhile, the foam absorbs as much of the impact as possible, so your head doesn't have to. Lastly, the soft padding ensures a ,good, fit against your head. The difference between basic and advanced ,helmets, normally lies in the shell . In contrast, a wide variety ,of helmets, will employ very similar foam layers.

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The Big Four: Criteria for Fabric Mask Materials for COVID ...

The Big Four: Criteria for Fabric Mask Materials for COVID ...

Material, Identification: Spunbond NWPP. Bags constructed from 100% Spunbond NWPP may be identified by either a tag indicating “100% ,Polypropylene,,” or the recycling “#5 ,PP,” indicator. In addition to ,material, composition, it is important to identify the spunbond nonwoven structure of the ,material,.

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Polypropylene - Wikipedia

Polypropylene - Wikipedia

Polypropylene, (,PP,), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.. ,Polypropylene, belongs to the group of polyolefins and is partially crystalline and non-polar.Its properties are similar to polyethylene, but it is slightly harder and more heat resistant.

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Welding Helmets and a few Tips and Tricks

Welding Helmets and a few Tips and Tricks

Some things to look for in an auto darkening ,welding helmet,. response time---the faster the better, just look at the most expensive ,helmets, like the miller digital elite, or speedglas high end models and use that as a benchmarksensitivity setting--any ,good, auto dark ,helmet, should have this setting to accommodate for low amperage ,welding, and ,welding, outside with sunlight

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Everything You Need To Know About Polypropylene (PP) Plastic

Everything You Need To Know About Polypropylene (PP) Plastic

What ,is Polypropylene, (,PP,), and What is it Used For? ,Polypropylene, (,PP,) is a thermoplastic “addition polymer” made from the combination of propylene monomers. It is used in a variety of applications to include packaging for consumer products, plastic parts for various industries including the automotive industry, special devices like living hinges, and textiles.

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What Materials are Used for a Automobile Bumpers | First ...

What Materials are Used for a Automobile Bumpers | First ...

15/12/2018, · ,Polypropylene, is a thermoplastic polymer used in a wide ... PVC has ,good, flexibility, is flame retardant, and has ,good, thermal ... impact, optical, electrical and thermal properties. Because of its extraordinary impact strength, it is the ,material, for car bumpers, ,helmets, of all kinds and bullet-proof glass substitutes ...

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Polypropylene (PP) Plastic: Types Properties Uses ...

Polypropylene (PP) Plastic: Types Properties Uses ...

8/9/2020, · ,Polypropylene,, High Melt Strength (HMS ,PP,)– It is a long chain branched ,material,, which combines both high melt strength and extensibility in the melt phase. ,PP, HMS grades have a wide mechanical property range, high heat stability, ,good, chemical resistance.

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Best Auto Dark Welding Helmet Reviews 2020-Good Value For ...

Best Auto Dark Welding Helmet Reviews 2020-Good Value For ...

14/7/2020, · It can be helpful if you are a student at a welding school. By choosing this, you can get a quality ,helmet, at a low price. It has a small viewing area with 3.63” x 1.65″ dimensions. But as compared to other ,helmets, in the market, it is still a ,good, choice. It gives a ,good, clarity rating of 1/1/1/2 and provides a variety of shades.

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dot helmet motorcycle dot helmet motorcycle Suppliers and ...

dot helmet motorcycle dot helmet motorcycle Suppliers and ...

Blue full face ,helmet, with ISO9000 certificate in ABS or ,PP material, 1) Injected ABS 2) Anti-scratch PC visor 3) Colors: black, mauve, white, yellow, blue, deep blue, red, purple, rogal . gray, pink and silver gray 4) Velvet padding: comfortable EPS cover, cheek pad, neck protector 5) Regular ,helmet, buckle, adjustable chin strap and standard clip 6) Smooth surface finish Packaging & Shipping 7 ...

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Performance Comparison of Motorcycle Helmet Shells of ...

Performance Comparison of Motorcycle Helmet Shells of ...

This paper is devoted to study and verify the suitability of the expanded ,polypropylene, (EPP) foam as a liner for motorcycle ,helmet, and to perform ,helmet, design optimization.

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The Best Materials For DIY Face Masks And Filters ...

The Best Materials For DIY Face Masks And Filters ...

8/4/2020, · What about non-woven ,polypropylene material,? ,Polypropylene, non-woven fibers (used in non-shiny reusable fabric grocery bags, tote bags and wine bags) also make adequate filter fabrics. “This is the same ,material, used in N95 masks, although the thickness and weave are different,” Dalai said.

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