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.
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
Professional team work and production line which can make nice quality in short time.
We trade with an open mind
24 / 7 guaranteed service
The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems
2 Evolution of Combat Helmets | Review of Department of ...
The Department of Defense (DoD) is continuing to invest in research to improve ,helmet, performance, through ,better, design and ,materials, as well as ,better, manufacturing processes. 2.1 INTRODUCTION In early usage, soldiers wore equipment made of leather or cloth in an attempt to protect their heads from sword cuts and other blows.Get Price Send E-mail
New Rider: What Motorcycle Gear Do You Need?
If ,you, only ,buy, one piece of motorcycle gear, ,buy, a ,helmet, – even if ,you, live in a state that doesn’t have a ,helmet, law. Nothing does more to protect ,you, in a crash than wearing a ,helmet,. When it comes to buying a ,helmet,, only two factors are absolute: DOT certification and a proper fit. Ascertaining the DOT status of a ,helmet, is easy.Get Price Send E-mail
Materials in a Motorcycle Helmet: What To Know
6/11/2020, · Sometimes this may lead death. If you don’t like to face this situation, it would be ,better, for you to use a right ,helmet, for your safety. If you know about the ,helmet, well, you can choose the right ,helmet, for your need. Lots of ,materials, are using to make a ,helmet,. You must have genuine knowledge of ,materials, of the ,helmet,.Get Price Send E-mail
Material for safer football helmets may reduce head injuries
Material for safer football helmets may reduce head injuries. by Cell Press. HRL Laboratories' Microlattice Impact Attenuator Pads are made with Light-Casting Technology that make helmets better ...Get Price Send E-mail
What Are Helmets Made Of?. You trust your motorcycle ...
5/10/2017, · Styrofoam and Koroyd Also known as Expanded Polystyrene (EPS), Styrofoam is one of the most popular materials used for the inner lining in a helmet. It is also commonly known as thermocol and has always been reliable considering its impact-absorbing qualities. Although Styrofoam is cheap and does the job well, it has certain drawbacks.Get Price Send E-mail
A motorcycle crash helmets fitting guide - Billys Crash ...
When ,you do buy, a ,helmet, online, ,you need, to make sure ,you, can return it and get a replacement without any problems. At BillysCrashHelmets, we’ll only suggest suppliers who’ll allow this without giving ,you, grief and in some cases they pay for the return (except on Amazon where there’s a ton of different sellers – so please be careful).Get Price Send E-mail
The Honeycomb Material That’s Making Helmets Better
It is among the lightest energy-absorbing ,materials, on the market — Smith’s Overtake ,helmet,, for example, weighs 250 grams (that’s just under 9 ounces). And it lasts far longer than standard EPS ,helmets,. “With EPS, when you get hit, the ,helmet, is done. You need to replace the ,helmet,,” Thorsell says.Get Price Send E-mail
ABS vs Polycarbonate: Which Helmet Shell Material Is Better?
10/7/2019, · There are many different materials helmets can be made out of. But the two most common shell materials for folding bike helmets are ABS and polycarbonate. Which one is better? It depends. On a high level, polycarbonate is more expensive, flexible, softer, and lighter. Conversely, ABS is much cheaper, as well as harder, heavier, and more brittle.Get Price Send E-mail
Thermoplastic vs Fiberglass - Bullard
Which ,material is better,? There are many misconceptions about these two fire ,helmet materials,. Both thermoplastic and fiberglass ,materials, protect firefighters, but they are different and each ,material, has its own specific strengths. Let’s look at the strengths and differences between these two ,materials,.Get Price Send E-mail
Material for safer football helmets may reduce head ...
Scientists have developed elastic microlattice pads that can withstand both single hits and a series of impacts ,better, than existing state-of-the-art foams used in football ,helmets,. Their research ...Get Price Send E-mail
A strange material may make protective helmets more so
30/7/2020, · RATs offer ,better, protection in all these cases. Current American-army combat ,helmets, are built to withstand impact velocities of three metres a second, with newer models being rated for just over ...Get Price Send E-mail
What Material Choices Are There in Motorcycle Helmet ...
The inner Styrofoam may be layered or stacked differently, but it's the outer shell materials that make the difference. Helmet materials we offer fall into two groups: more basic thermoplastics (ABS, polycarbonate, and compounds that are a blend of both) and composite materials made of more complex fiber and resin mixes (fiberglass, Kevlar, carbon fiber, and composite blends).Get Price Send E-mail
Helmet Case Study - Materials Group
The main impact absorbing ,material, in a cycling ,helmet, is, therefore, a moulded block of polystyrene foam, usually with a polycarbonate covering. These ,materials, are easily shaped - cycling ,helmets, often have striking shapes to improve their aerodynamic performance.Get Price Send E-mail
Are Carbon Fiber Motorcycle Helmets Better? - WhiteOut Press
A ,helmet, made of glass fiber is durable and lightweight, but it may also empty your pocket too. Fiberglass is a standard ,material, used in surfboards, car panels, thermal and electrical insulation. Fiberglass ,helmets, are a ,better, choice for the riders on slower machines that only pose a risk for minor spills.Get Price Send E-mail