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The same helmet

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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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.

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We abide by the privacy policy and human rights, follow the business order, do our utmost to provide you with a fair and secure trading environment, and look forward to your customers coming to cooperate with us, openly mind and trade with customers, promote common development, and work together for a win-win situation.

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The same helmet
What’s the difference between LDPE and HDPE? | Knowledge ...
What’s the difference between LDPE and HDPE? | Knowledge ...

HDPE,: Shrinkage Because ,HDPE, is a crystalline material, the shrinkage is high: about 0.015 – 0.04mm/mm or 1.5 – 4%. This will depend on the degree of orientation and the level of crystallinity in the part – and that, of course, depends on the processing conditions and even the design of the part that you’re manufacturing.

CN1812731A - Safety helmets - Google Patents
CN1812731A - Safety helmets - Google Patents

A ,low, mass ,safety helmet, is provided, containing a sandwich of polymer composite materials to produce an effective means of shock mitigation to a wearer's head. The sandwich comprises an inner and outer layer of fibre reinforced polymer which encapsulates a pre-formed energy dispersive material which is typically a high impact resistant foam.

Polyethylene (PE) Plastic: Properties Uses & Application
Polyethylene (PE) Plastic: Properties Uses & Application

Low, Density ,Polyethylene, (LDPE) ,Low, Density ,Polyethylene, (LDPE) is a semi-rigid and translucent polymer. Compared to ,HDPE,, it has a higher degree of short and long side-chain branching. It is produced at high ,pressure, (1000-3000 bar; 80-300°C) via free radical polymerization process.

Polyethylene (PE) Plastic: Properties Uses & Application
Polyethylene (PE) Plastic: Properties Uses & Application

Low, Density ,Polyethylene, (LDPE) ,Low, Density ,Polyethylene, (LDPE) is a semi-rigid and translucent polymer. Compared to ,HDPE,, it has a higher degree of short and long side-chain branching. It is produced at high ,pressure, (1000-3000 bar; 80-300°C) via free radical polymerization process.

Dentec Safety Specialists Inc. | safety safety products ...
Dentec Safety Specialists Inc. | safety safety products ...

Low, Maintenance/Limited Use Comfort-Air Series 400 is priced to be disposable, but can be used over and over again like our series 100 silicone or series 300 thermoplastic half masks. Dentec ,Safety, Comfort-Air ® Respirators fit over 99% of wearers (based on end-user fit test data).

Dentec Safety Specialists Inc. | safety safety products ...
Dentec Safety Specialists Inc. | safety safety products ...

Low, Maintenance/Limited Use Comfort-Air Series 400 is priced to be disposable, but can be used over and over again like our series 100 silicone or series 300 thermoplastic half masks. Dentec ,Safety, Comfort-Air ® Respirators fit over 99% of wearers (based on end-user fit test data).

polyethylene | Properties Structures Uses & Facts ...
polyethylene | Properties Structures Uses & Facts ...

Polyethylene,, light, versatile synthetic resin made from the polymerization of ethylene. ,Polyethylene, is a member of the important family of polyolefin resins. It is the most widely used plastic in the world, being made into products ranging from clear food wrap and shopping bags to detergent bottles and fuel tanks.

Polyethylene - University of Cincinnati
Polyethylene - University of Cincinnati

Low, Density ,Polyethylene, (LDPE) High degree of short and long chain branching Density - 30.910–0.940 g/cm Lower tensile strength and increased ductility Free radical polymerization Plastic bags and film wrap High Density ,Polyethylene, (,HDPE,) ,Low, degrees of …

PE | Lotte Chemical
PE | Lotte Chemical

Linear ,Low,-density ,Polyethylene, Linear ,low,-density ,polyethylene, (LLDPE) is widely used not only in processing but also in daily life. Produced by a ,low,-,pressure, polymerization process, LLDPE has a linear polymer chain and short chain branch structure.

Cable Jacket Materials - What's Right for You? | Multicom
Cable Jacket Materials - What's Right for You? | Multicom

It is usually ,low,-cost, flexible, fairly rugged, and a flame/oil-resistant material. PVC can be made in either a matte,glossy or slick finish. IMSA 19-1 has a PVC jacket: PE (,Polyethylene,) Excellent electrical properties with very high insulation resistance. ,Polyethylene, can be stiff and very hard, however ,low, density PE (LDPE) is more flexible.