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.
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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.
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The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems
28/5/2011, · 1. Thick ,inner liner, of the motorcycle ,helmet,. Good ,helmet,: ,Helmets, that meet the minimum Federal ,safety, standard have an ,inner liner,, usually about one-inch thick of firm polystyrene foam. Sometimes ,the inner liner, won’t be visible, but you should still be able to feel its thickness.
Unsafe ,helmets, will be less than 1 inch thick, and usually lack a stiff foam ,inner liner,. ,Helmets, meeting the DOT ,safety, standard have sturdy chin straps with solid ,rivets,. Unsafe ,helmets, may have plastic buckles that can easily break in the event of a crash. Depending on design, unsafe ,helmets, …
14/5/2009, · I have posted photos of some of my ,helmet, liners in various threads, but I thought that I would begin a new thread to discuss the development of the M1 ,liner,. Most of my information has come from an unpublished manuscript entitled THE HISTORY OF THE ,HELMET LINER, written by Marion Massen in 1944. ...
In addition to the DOT sticker, riders should look for a ,helmet, with: A thick ,inner liner, (roughly a one-inch layer of firm polystyrene foam) Sturdy chin strap with solid ,rivets,; Weight of around three pounds; Nothing that extends further than 2/10-inch from the ,helmet's, surface; A manufacturer's label.
thermoplastic ,inner liner,. The impact ,liner, shall include a brass-retaining ring fastened to the base of ,the inner liner,. The impact ,liner, shall be fastened to the leather shell by mean of four brass ,rivets, located at the base of the crown of the ,helmet, shell. HEAD SUSPENSION The Cairns N5A New Yorker Fire ,Helmet, suspension shall be made
The ,helmet, consists of an outer layer and an ,inner, layer. The outer layer (mine is leather) will be done first. 1. Top strip. You need to measure the distance from your eyebrows to where your neck meets your shoulders. This is is the length of the top strip. The width is the distance across your forehead, or between the outer corners of your ...
The Department of Transportation (DOT) sets minimum ,safety, performance requirements for motorbike ,helmets,, bought in America. Federal law sets the below-mentioned requirements for a motorbike ,helmet,. It must have a polystyrene foam ,inner liner,, which is no less than an inch thick. It must also have durable chinstraps fastened using solid ,rivets,.
thickness of ,inner liner,—the ,liner, should be made of polystyrene foam and be at least 1 inch thick; chinstraps and ,rivets,—these details should be strong and reliable by feel; ,helmet, weight—really protective ,helmets, should be rather weighty (about 3 pounds);