1. Does the Bicycle helmet have 3C certification?

According to national compulsory standards, the Bicycle helmet needs to have 3C certification to ensure that the product meets the national regulations and standards, thereby ensuring the safety of consumers when using the helmet.

3C certification is an important symbol of Chinese compulsory product certification, which is an important symbol to ensure product quality, safety and performance.The 3C -certified helmet means that its product quality and safety performance have undergone the testing and certification of China's national authority.

When buying a Bicycle helmet, safety is particularly important.When purchasing, the helmet is screened by viewing, squeezing, and knocking, and the Bicycle helmet that meets the 3C certification standards in my country is the best.

2. How to judge whether the cycling helmet has 3C certification

If you want to determine whether a riding helmet has 3C certification, you can follow the following steps for a simple inspection:

1. Shell inspection

A 3C -certified cycling helmet is usually marked with the "CCC" logo on the shell.You can carefully check the surface of the helmet case to see if there is a CCC logo.If not, it may not pass 3C certification.

2. Internal logo check

Open the lining of the helmet, usually a sign or label with manufacturer information, batches and 3C certification signs.Please verify the authenticity of this information and pay special attention to whether there is a CCC logo.

3. Read the product instructions

Check the product manual or user manual attached to the cycling helmet, which can learn more about the manufacturer's information and product certification of the helmet.A 3C -certified helmet manufacturer usually clearly refers to the certification in the product manual.

4. Refer to the official certification website

You can check the official website of the China Quality Certification Center (CNCA), verify and verify whether the helmet manufacturer has a legitimate 3C certification.Their official website provides open -query product certification databases.

How to choose Outdoor Skin jackets for Outdoor Skin sunscreen?

Does Outdoor Skin sunscreen?

There are three types of sunscreens for the ultraviolet rays in summer: wearing long sleeves T Together, sunscreen, sunscreen clothing!As far as the sunscreen effect is concerned: sunscreen clothes ordinary cloth clothes Any sunscreen.

It is explained here that in the above -mentioned ordinary materials, no translucent and hollowed clothes are included. This kind of clothes basically cannot have any sunscreen effect!

What kind of clothes are the best sunscreen effect?

In the clothes that usually wear, there are various textures such as cotton and hemp. What kind of clothes are the best sunscreen effect?Their Sun protection effect is like this--

Polyester nylon artificial cotton pupae.

What color sunscreen is the best?

In terms of color, the darker the color, the higher the protective performance of its ultraviolet rays, that is:

Dark colors are light.

The darker the clothes, the stronger the absorption of light.Light to white clothes, part of them are reflected and part of them will transmit it. Therefore, wearing white clothes will feel cool, but ultraviolet rays may transmit it on the Skin.When wearing black clothes, the light is basically absorbed, so you should choose darker or bright clothes.

Seeing this, you probably understand. If you choose a clothes with good sunscreen, you should choose sunscreen clothes made of darker colors, polyester or nylon!

Skin Skin clothes, have you really chosen right?

As the temperature in spring becomes higher and higher, the figure of the Skin is also beginning to be active.This is only the size of the Red Bull, and the weight of a smartphone with a heavy weight. Whether it is wearing a photo or a windproof and sunscreen, it is an indispensable artifact.However, the market is from 100 arrive 1000 There are thousands of diverse Skin jackets, and it looks almost the same.How should we choose?

How to choose high -quality Skin jackets

1, fire Eye Golden eyes Look at the fabric

There are generally three fabrics of Skin trench coats: nylon, polyester and brocade, of which nylon is the best.nylon's chemical name is nylon 6 The texture is thin, soft and Smooth, and high wear resistance is cotton 10 More, it's high wool 20 Times; intensity than cotton 1-2 More than wool 4-5 Times.Polyester fabrics are stiff, acid -resistant, and high -temperature resistant than nylon, while brocade polyester is between the two according to the proportion of the ingredients.

Why are some Skin trench coats called Raincoats?The reason is that the fabric uses ordinary chemical fiber fabrics. It is stuffy and breathable. It will stick to the body when sweating. If the weather is fine during the Outdoor activity, once it encounters heavy rain, the original shape is revealed.The situation will be terrible!

2, Chasing the roots to the source to see the tag

The core reason why Skin trench coats can resist ultraviolet rays is that the fabric is added with an ultraviolet additive, and the tag is a symbol issued by the anti -ultraviolet assistant manufacturer, which is equivalent to the "identity certificate" of Skin trench coat anti -ultraviolet rays.

Regular anti -ultraviolet products should be marked with national standard numbers and the number of national standards UPF value.if UPF The measurement value is greater than 30 ,and UVA The transmission rate is less than 5% The identification is 30 +; UPF The measurement value is greater than 50 ,and UVA The transmission rate is less than 5% The identification is 50 +.

3, Select more carefully

Skin trench coats should be windproof and waterproof, and workmanship is also important.The fabric is very good, but the suture is not tightly meticulous. The zipper is bad, or there are thread heads everywhere, which will cause wind leakage.Therefore, after determining the quality of the fabric, we must take a closer look at the workmanship, carefully check how the gap binds and the zipper are good, and strive to seek the clothes sutures and the zipper part of the workmanship.

It should be reminded that when you buy a suit jacket and fashionable clothing, the more "handmade sutures", the higher the grade, but the Skin trench coat is not the case.A good Skin trench coat must be sutured with very precise instruments to achieve the tight and strict effects of the pins. No matter how detailed the manual is, it is not as good as the machine at this point.

4, Weighing the weight ratio weight

The most basic concept of Skin trench coat is called a "Skin" windbreaker. It is thin and thin, and it is like a layer of Skin.Therefore, under the premise of functional indicators, the lighter the Skin trench coat, the better, not that some new donkey friends think that "the weight is appropriate".

The method of comparison is very simple. Generally, you can weigh it by hand, and it can be called it in a convenient situation. 100 Kh, it is really "light as Hongmao"!

5. color selection tips

Because of dark heat, all the Skin trench coats are light colors, but how to choose all kinds of light colors?This should be determined according to your Skin and preferences.

For example, orange can make people look cute, gentle, and bright; white looks spiritual, setsment of good looks and good temperament; pink, such as pink blue, pink yellow, pink and other colors that look soft and comfortable.; Blue blue not only looks fair, but also very eye -catching.

1. How to use the navigator

1. After use, follow the order of shutdown: close the page first, then shut down, and finally unplug the plug.Many car owners are directly unplugged after the habit of using it. It is believed that it is convenient to save trouble. In fact, this time is easy to damage the use of electronic components and the use time for the short navigator.

2. Regarding the charging problem, after the purchase of the machine, the navigator is best charged for 10 hours in the first three times, so that the battery power storage capacity is maximized.

3. Move the car first, and then insert some cigarettes.After the navigation is over, unplug the cigarette lighter, and then insert it after the car is launched next time. This will help protect the machine battery and extend the service life of the battery.

4. The screen of the navigator is still relatively fragile, so do not let the navigation screen contact sharp objects, let alone be strongly impacted. Care should be carefully put on the owner.

5. Do not place the sun in the sun for a long time. The larger temperature difference not only affects the battery life of the navigation, but also affects the touch sensitivity of the LCD screen.

6. In the case of not in use, try to store it as much as possible.

2. Daily maintenance method of GPS navigator

After buying a navigator, many friends usually only pay attention to the use of navigators, often ignoring the maintenance of the navigator, which will cause the navigator to occur after a period of time.life.

1. Correct shutdown order

When turning off the navigator, we must have the correct order. After using the guidance instrument, when we turn off the navigator, first turn off the application that is opened inside, then shut down, and finally turn off the power supply.However, many friends often turn off the power supply or unplug the plug. This can easily damage the navigator. After all, electronic products are very fragile.

2. Correct charging method

After buying the navigator, when you first started, try to be as full as possible every time you charge, so that the battery can reach the saturated state of power storage.If each charging is not full and the battery is "hungry" for a long time, it will reduce the service life of the battery for a long time.

3. waterproof and moisture -proof

Pay more attention to the waterproof of the navigator. Electronic equipment is afraid of water. Once water is entered, it cannot be used.When we cleaning the navigator, we try to wipe it with a twisted towel, and do not spray water on it.Dedicated cleaning products should be used when cleaning, so as to avoid damage to the screen.

4. How to use the touch screen correctly

Do not touch the navigator with hard things, so it is easy to damage the screen.In addition, do not let the navigator be exposed to the sun under the sun. This will not only reduce the service life of the battery, but also affect the sensitivity of the screen.

Disclaimer: The above method stems from the index of the program system or the sharing of netizens. It is for your reference only and does not represent the research perspective of this website. It proves that it is valid. Please pay attention to the authenticity and authority of the source of the content of the content.Apply to delete & gt; & gt; error correction & gt; & gt;

1. Can bikini be everywhere underwear?

bikini cannot be worn as underwear.

The underwear and bikini are different and the design is different.bikini should be suitable for dressed in underwater exercise. This requires elasticity and waterproof. The resistance to water during underwater exercise is relatively small. Therefore, bikini will be designed as tight styles.

The main role of underwear is to protect women's breasts, which can play a role in shaping and support, and the production process is relatively complicated.At the same time, it is not too tight to wear, so it is breathable, Skin -friendly, and hygroscopic. It can keep the Skin dry at any time.

bikini is generally worn during swimming in summer, and underwear is worn all year round. bikini cannot replace underwear because bikini does not have the breathability and hygroscopicness of underwear.Similarly, underwear cannot replace bikinis because the underwear does not have waterproof properties, and cotton underwear will become translucent after absorbing water, which will easily cause embarrassing scenes.

2. Can bikini be worn as pajamas?

bikini's material, function, etc. are completely different from pajamas. If you must wear it like this, it is easy to sleep when you sleep.bikini's material is generally dry and waterproof. It is very hydrophilic, that is, the hygroscopicity is not strong. When people sweat, they will produce a sense of sweltering because it cannot absorb.In addition, the function of bikini is also special. It is usually a little tighter. It needs to prevent light and cannot provide a better relaxation, so it cannot be worn as pajamas.

[folding Mattress] What are the advantages of the type of folding Mattress?

What are the types of folding mattresses?

1. latex folding Mattress

The latex is divided into synthetic latex and natural latex. The synthetic latex is derived from oil, lack of elasticity and breathability; natural latex comes from rubber trees, soft and comfortable, good breathability, can emit a faint milk flavor, closer to nature.The oak protein in natural latex can inhibit the lurking of germs and allergies. Compared with synthetic latex, natural latex costs are high, but it is more suitable for making sleeping products.

2. Environmental cotton folding Mattress

Environmental cotton folding mattresses mainly use environmentally friendly cotton as an internal core. Environmental cotton is made from non -woven craftsmanship by polyester fiber as raw materials. Because of its environmental protection, 0 formaldehyde is swept through the software and furniture industry.The environmental cotton is made of polyester fiber, which greatly increases the breathability and service life of the Mattress. Environmental cotton folding mattresses do not breed mold, have no irritating odor, are close to the Skin, but not easy to get moisture. They are making mattresses.And the excellent material of Outdoor cushion.

3, 3D folding Mattress

The 3D folding Mattress uses 3D materials as the inner tendon in the Mattress. The 3D material adopts the "X-90 " structure and double-sided network holes to present a six-sided breathable hollow three-dimensional structure.Due to oppression, the blood circulation is not Smooth, and the deep sleep is effectively extended.The biggest feature of 3D materials is breathability. The air can be freely circulated inside the Mattress to maintain the dryness of the Mattress as a whole.

4. Sponge folding Mattress

The sponge Mattress uses high -density sponge as the inner core of the Mattress. Because of its foaming process, the sponge is made with a slight irritating taste.It has high softness, high elasticity, folding mattresses made of sponge, soft style, suitable for young consumer groups!

5. Palm folding Mattress

Palm refers to the collective name of palm materials such as mountain palm and coconut palm. coconut palm is the product of the fruit shell fiber processing and treatment of coconut trees. Because coconut is high -sugar -content fruit, coconut palm contains a large amount of fruit sugar.The mattresses that are forming are often moldy and breed bacteria due to unqualified descending treatment of coconut palm mattresses. coconut palm is naturally plant fiber, high hygroscopic, and mattresses are prone to moisture.The Yamanaka -Chirakawa area, which is a subtropical, has almost no sugar and durable, but the output of mountain brown mattresses requires dozens of mountain palm trees to produce a one -year output of mountain brown mattresses. ThereforeChen Ben is high, slowly produced, and high -produced latex, highly comfortable latex, environmentally friendly cotton, etc.

What are the advantages of folding Mattress

1. The foldable mattresses are relatively easy. For some people who often travel often, put the Mattress in a business trip, so as not to seal the dust at home every day.Take it directly and use it, so you don't need to clean up again.It is the same for some people who do not want to use the Mattress in summer. It is not too hindered to fold it under the bed or in the cabinet.

2. You can buy it at home at home. When a guest comes to the house, if you do not want the guest to sleep in a narrow space like the folding bed, you can directly spread the folding Mattress directly on the floor floor of the room as a tatami rice.It is also very convenient, the space is spacious, and the guests sleep naturally.All in all, the function of folding mattresses is diverse. As long as you can make full use of it, this is indeed a must -have artifact at home.

How to buy high -quality folding mattresses

color: Pay attention to whether the color is your favorite. It is recommended to choose light -colored (warm colors) in the Mattress color of the bedroom. Warm color is more likely to make people fall asleep.

Appearance: See if the corners of the Mattress are clear, whether the thickness is uniform, the surface is flat, and the line marks are well -proportioned.

elasticity: There is no best, only the most appropriate one, choose a folding Mattress that suits you to fall asleep when you fall asleep, because people are different because of people.Children are suitable to use a hard environmental cotton folding Mattress. Young people can choose a latex mattress with high comfort. The middle -aged and elderly people are suitable for the specialty of the environmentally friendly cotton folding Mattress due to their specialty.3D folding Mattress, suitable for environmentally friendly cotton folding mattresses with high density and good warmth in winter.

Safety: Environmental cotton and 3D materials are completely tasteless. Pure natural latex will emit a faint milk flavor. The sponge will have a slight irritating smell. The most ease of formaldehyde is coconut palm (caused by a large amount of chemical adhesives)Intersection