Supply The Car telescopic umbrella cover ol

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The Car telescopic umbrella cover ol - 517.

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Updated: 2018-05-11 11:31
About Product:\"Product\" is the most common place in the world. Do not do the umbrella barrel when using, can collect all kinds of household garbage, suitable for family car, office use. Convenient and simple, reasonable design and materials.

EXW Price:

240pcs ~2399pcs		CN ￥ 5.5 /pc
Above 2400pcs		CN ￥ 5.4 /pc

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Yiwu Loujie Daily Necessary Firm 13yr.
Main Products:	Electric Kettle,Electric Lunch Box,Air Fryer,Juicer,Breakfast Maker,Sandwich Maker,Meat Grinder,Oven,Egg Steamer,Egg Beater
Contacts:	JinChat
Mobile:	86-18057985790
E-mail:	1604065956@qq.com
WeChat:	loujiebh
Address:	15078 , 10 Street, 2 F, 42 Gate, International Trade Mart (District 2).

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Description

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Compared with other materials, plastic has the following characteristics:
      1. Light weight. Plastics are lighter materials with a relative density between 0.90 and 2.2. Obviously, can plastic float to the surface of the water? In particular, foamed plastics, because of the micropores, the texture is lighter, the relative density is only 0.01. This feature allows plastics to be used to reduce the production of self-heavy products.
      2. Excellent chemical stability. Most plastics have good corrosion resistance to acids, alkali and other chemicals. In particular, polytetrafluoroethylene (F4), commonly known as plastic king, is more chemically stable than gold, and boiled in \"wang shui\" for more than 10 hours. Because F4 has excellent chemical stability, it is an ideal corrosion resistant material. F4 can be used as a material for conveying corrosive and viscous liquid pipes.
      3. Excellent electrical insulation performance. Ordinary plastics are poor conductors of electricity. Their surface resistance and volume resistance are very large, and they can be used to represent 109 1018 ohms. The breakdown voltage is large and the tangent value of dielectric loss is very small. As a result, plastics are widely used in the electronic and mechanical industries. Such as plastic insulation control cable.
      4. The poor conductor of heat has the function of silencing and damping. Generally speaking, the thermal conductivity of plastics is relatively low, which is equivalent to 1/75-1/225 of steel. The micropores of foam plastics contain gas, which is better insulated, soundproof and shockproof. The thermal conductivity of polyvinyl chloride (PVC) is only 1/357 of steel and 1/1250 of aluminum. In thermal insulation capacity, single glass Windows are 40% higher than single glass Windows and 50% double glass. After combining the plastic form with the insulating glass, it is very obvious to use in residence, office building, ward and hotel, saving heating in winter and saving air conditioning in summer.
      5. The distribution of mechanical strength is wide and the specific strength is higher. Some plastics are hard as stone, steel, some soft like paper, leather; From the mechanical properties of hardness, tensile strength, elongation and impact strength of plastic, the distribution range is wide, and there is a great use of choice. Because the proportion of plastic is small, the intensity is big, have higher than intensity accordingly. Compared with other materials, plastics also have obvious disadvantages, such as easy combustion, less rigidity than metal, poor aging resistance, and no heat resistance.Product solves the snowy nowhere to place the wet umbrella inside the rain and the problem of garbage collection, open the cover of, can place a variety of specifications of the umbrella, do not do the umbrella barrel when using, can collect all kinds of household garbage, suitable for family car, office use. Convenient and simple, reasonable design and materials.

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