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.
custom bump cap hat pins
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
Composites, most metals, and many polymers look good. Another requirement for hard hats is that they should be inexpensive and low weight. Polymers best meet all these needs and are also easy to manufacture. In fact hard hats ,are mainly made, from polycarbonate or ABS and fitted via adjustable ,polyethylene, straps inside the shell.
Fiberglass ,safety helmet,, as one of earlier ,products, for head protection, is ,made, of fiberglass reinforced ,plastic, which is strong, robust and capable to withstand high temperature up to 500℃. So they are widely used in metal melting, mineral and petrol industries, etc.
Protective ,Safety Helmets, . ,Polyethylene Helmets, For Construction & Industry. Available with two different styles of harness and incorporating a retractable visor and assembly unit. Material Properties: Heat resistance - max +70°C; Cold resistance - max -40°C; Chemical resistance - Generally good.
Commonly used materials and performance of ,helmets,. There are many materials for production of ,helmets,. At present, common materials for production of ,helmets, at home and abroad are: ABS, HDPE, PC, FRP, etc. Internal structure of caps, ,mainly produced, by LDPE, PA and other materials; Top lining is ,made, of HDPE or sponge composite nylon material.
23rd Aug 2018. High-Density ,Polyethylene, for ,Safety Helmet, Shells. ,Safety helmets, are used in a multitude of industries such as construction, electric utility, nuclear and oil refining, chemical, commercial (such as tour operations in underground caves), agriculture and many more.
Our company was originally founded in 2001, starting as a ,plastic, accessories supplier. In 2007 we start to set foot in personal protective equipment area, ,mainly, focus on head protection. We have gradually become a professional PPE suppplier during the year of harding work in the field. Since then we have developed different series of ,products
21/10/2010, · In 1939, the first ,plastic helmet,—stronger, lighter, and more durable than leather—was introduced by the Riddell Company and the leather ,helmet, was obsolete within 10 years. Today’s ,plastic, football ,helmets, are ,made, from molded polycarbonate shells with foam padding (either polyurethane, polystyrene, polypropylene, or ethylene vinyl acetate) inside.
Other ,plastic helmets, known as "advanced thermoset resins" (ATRs) require the addition of a curing agent to create the chemical reaction necessary for the ,plastic, to harden into final form. While all these ,plastics, offer a good combination of rigidity and flexibility, they are less strong pound-for-pound than composite weave materials.
Helmets, are largely ,made, of ,plastics,, but the good news is that most of the ,plastics, used are probably safe. There may be concerns about the ,plastic, in polycarbonate shells, but they are not in contact with your skin while you ride. We think that the benefits of ,helmet, …