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.
Three years of coal mine safety helmet
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
6/11/2020, · Some motorcycle ,helmets, use one layer of polystyrene foam, a supertype of ,helmet, use more layers of polystyrene foam to build safer ,helmet, to use it especially as the ,helmet, is being used. We need to remember that the polystyrene foam needs to be replaced in different places for the ,helmet, as it would not be ,much, effective to make sure that it would save you at the time of using it.
We are often asked if cheap ,helmets, protect well. Bike shop sales people like to warn customers "buy a $10 ,helmet, for a $10 head." A well-known, reputable US test lab agreed to test some very cheap and very expensive ,helmets, for us to compare their performance in ASTM/CPSC testing at both regular drops and lower impacts.
The cheap ones are made from ,ABS,, the more expensive ones are made from fiber reinforced plastic such as polycarbonate. Carbon fiber becomes more and more popular, as the manufacturers are successfully integrating this material into automatized pr...
ABS, (,Acrylonitrile Butadiene Styrene,) ,ABS, plastic is a thermoplastic blend which combines the strength and rigidity of certain polymers with the ruggedness of polybutadiene rubber. Because ,ABS, plastic is chemical- and heat-resistant and offers good protection against dents, it's widely used in ,helmets,.
Helmets, Before the introduction of steel and aluminium, they were made of iron and beaten into shape. These days ,helmets, are not only used by the police and army, but have also seen widespread use in more peaceful areas like building, cycling, horse riding, snowboarding, boxing etc. Modern ,helmets, are mainly of polymer construction, but their design varies depending on the application.
If you’re still in two minds about ,abs, bike ,helmet, and are thinking about choosing a similar product, AliExpress is a great place to compare prices and sellers. We’ll help you to work out whether it’s worth paying extra for a high-end version or whether you’re getting just as good a …
19/10/2020, · Most of today’s hardshell ,helmets, feature a thick ,ABS, outer that small rocks and ice chunks will simply bounce right off of. While the lining of this type of ,helmet, is typically a thin layer of foam. The main advantages of this type of ,helmet, are a lower price and a longer life.
The ,helmet, is placed on the head form and the straps and buckles adjusted to obtain the best fit condition. Weight is connected via wire rope and dropped from a determined height. The ,helmet, is turned 180 degrees, and the test conducted again. The ,helmet, may shift, but must not roll off …