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.
Helmets become helmets
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.
Professional team work and production line which can make nice quality in short time.
The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems
Address：No. 3888, Hutai Road, Baoshan District, Shanghai, China
Bicycle helmets, are made to protect against a single severe impact, like a fall on the pavement. Once the impact is done you need to change it. Because even if you don’t see it, the ,helmet, has always small cracks after a hard impact.
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These ,helmets, were a spin-off from the development of expanded polystyrene ,foam, liners for motorcycling and motorsport ,helmets, and had hard polycarbonate plastic shells. The ,bicycle helmet, arm of Bell was split off in 1991 as Bell Sports Inc. , having completely overtaken the motorcycle and motorsports ,helmet, business.
Bike helmets, are made of 5 components. The one that gets the most attention is the ,foam, material called EPS (expanded polystyrene ,foam,). Over time EPS deteriorates from everyday use and can make it less effective in the event of a crash.Even if you haven’t had a crash, ,bike helmet, manufacturers recommended that you replace your ,bike helmet, every three to five years.
Helmets, that use EPP ,foam, are going to be the more high end and newer products on the market. They are used most frequently in hockey ,helmets, that anticipate frequent impacts. There are ,bike helmets, that use this ,foam, as well, however you should be sure of this before deciding to keep your ,helmet, …
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Bike helmet, liners are usually made of Expanded Polystyrene (EPS) ,foam,, Expanded PolyPropylene (EPP) or Expanded Polyurethane (EPU or PU). The shell for cheaper ,helmets, is stamped PET, ABS, polycarbonate plastic or other plastic, while some ,helmet, shells may include layers of fiberglass or kevlar.
EPS ,foam, can recompress, but there is too little of it in ,bike helmets, where it would be able to absorb another impact. The Zacro is a good example of a ,bike helmet,. It has a lot of ventilation holes and has a shape that is aerodynamic.