Now those certificates can be tested in society.

Nowadays, those certificates in society can be used to test driver's license, financial certificate, professional qualification certificate, published papers, patent certificate and computer certificate.

What new types of glass are there in society now? I. Flat glass

Flat glass refers to flat glass products without other processing, also known as white glass or clean glass. According to different production methods, it can be divided into ordinary flat glass and float glass. Flat glass is one of the most widely used building glasses, which is mainly used for doors and windows, playing the roles of lighting, enclosure, heat preservation and sound insulation, and is also the original glass further processed into other technical glasses.

Flat glass can be divided into window glass and decorative glass according to its use. According to the national standards "Ordinary Flat Glass" and "Float Glass", glass can be divided into the following specifications according to its thickness:

According to the national standards, flat glass is classified according to its appearance quality, and ordinary flat glass is divided into three grades: excellent product, first-class product and second-class product. Float glass is divided into three grades: excellent, first-class and qualified.

Flat glass has two uses: 3 ~ 5 mm flat glass is generally used for direct lighting of doors and windows, and 8 ~ 12 mm flat glass can be used for partition. Another important use is as the original sheet for tempering, laminating, coating and insulating glass.

Second, safety glass.

Safety glass refers to glass with high mechanical strength and strong impact resistance compared with ordinary glass. Its main varieties are tempered glass, laminated glass, laminated glass and titanium glass. When the safety glass is broken, its fragments will not hurt people, and it also has the functions of theft prevention and fire prevention. According to the original glass used in production, safety glass has a certain decorative effect.

(1) tempered glass

Tempered glass is also called tempered glass. It uses physical or chemical methods to form a laminated stress layer on the glass surface, and the glass itself has high compressive strength and will not cause damage. Tempered glass is a secondary product of flat glass, and the processing of tempered glass can be divided into physical tempering and chemical tempering.

Tempered glass has high strength, and its compressive strength can reach more than 125MPa, which is 4 ~ 5 times larger than that of ordinary glass. The impact strength is also high. When measured by steel ball method, 0.8kg steel ball falls from the height of 1.2m, and the glass can be kept intact.

Thermal stability is good, and it is not easy to crack when it is quenched and heated, which is another feature of tempered glass. This is because the compressive stress of tempered glass can offset part of the tensile stress caused by rapid cooling and rapid heating. Tempered glass is resistant to thermal shock, the maximum safe working temperature is 288℃, and it can withstand the temperature difference change of 204℃.

Tempered glass is widely used in construction engineering, transportation and other fields because of its good mechanical efficiency and thermal stability. Flat tempered glass is often used as doors and windows, partitions, curtain walls, windows and furniture of buildings, while curved glass is often used in cars, trains and airplanes.

(2) Wire clamping glass

Laminated glass is also called shatterproof glass or steel wire glass. It is produced by calendering method, that is, in the molten state of glass, the preheated steel wire or steel wire mesh is pressed into the middle of glass and annealed and cut. The surface of wire-lined glass can be embossed or polished, and the color can be made colorless, transparent or colored.

Laminated glass is characterized by good safety and fire resistance. Due to the skeleton function of steel wire mesh, not only the strength of glass is improved, but also the fragments will not fly away when damaged by impact or sudden temperature change, thus avoiding the damage of fragments to people. In case of fire, when the flame is prolonged and the laminated glass is cracked by heat, the glass can still be fixed and isolated from the flame due to the role of wire mesh, so it is also called fire-proof glass.

At present, the laminated glass produced in China is divided into laminated embossed glass and laminated polished glass. Laminated glass can be used in doors and windows, skylights, lighting roofs, balconies and other building parts.

(3) laminated glass

Laminated glass is a flat or curved composite glass product made of PVB resin film between two or more original glass sheets by heating and pressure bonding. The original sheet of laminated glass can be ordinary flat glass, float glass, tempered glass, colored glass, heat absorbing glass or heat reflecting glass.

There are 2, 3, 5 and 7 layers of laminated glass, with a maximum of 9 layers. Laminated glass has good transparency and impact resistance several times higher than ordinary flat glass. Multiple layers of ordinary glass or tempered glass can be compounded to make bulletproof glass. Because of the adhesion of PVB film, even if the glass is broken, the fragments will not fly out and hurt people. By using different original glasses, laminated glass can also have durability, heat resistance and moisture resistance.

With high safety, laminated glass is generally used as doors and windows, skylights, windows and partitions of shops, banks and jewelry in high-rise buildings.

(4) Titanium glass

Titanate glass, also known as unbreakable armored foil glass, is a new type of glass, which closely combines titanium and gold foil film on any glass substrate. Titanium glass has the functions of high compression resistance, high heat resistance and ultraviolet resistance. Different base glasses and different titanium foil films can be combined into titanium glasses with different colors, different efficiencies and different specifications. The common colors of titanium glass are: colorless and transparent, dark brown, dark brown reflection, copper reflection and so on.

Third, energy-saving glass.

Traditional glass is mainly used for architectural lighting. With the increase of the size of building doors and windows, people's requirements for the thermal insulation performance of doors and windows are also improved accordingly. Energy-saving decorative glass is a kind of glass that can meet this requirement and integrate energy-saving and decorative functions. Energy-saving decorative glass usually has a pleasant appearance color, but also has the special ability to absorb, transmit and reflect light and heat. The use of glass curtain wall of building external wall windows can play a significant energy-saving effect and has been widely used in various high-rise buildings. Energy-saving decorative glass commonly used in buildings includes heat-absorbing glass, heat-reflecting glass and insulating glass.

(1) heat-absorbing glass

Heat absorbing glass is a kind of flat glass, which can absorb a lot of infrared radiation energy and maintain a high visible light transmittance.

The heat-absorbing glasses are gray, brown, blue, green, bronze, bronze, pink and golden yellow. At present, China mainly produces the first three colors of heat-absorbing glass. There are four kinds of thickness: 2, 3, 5 and 6mm. The heat-absorbing glass can also be further processed into polished, toughened, laminated or insulating glass. Heat-absorbing glass has been widely used in doors and windows of buildings, external walls and windshields of cars and ships, playing the roles of heat insulation, glare prevention, lighting and decoration.

(2) Heat reflective glass

Heat reflective glass is a kind of flat glass with strong heat reflective ability and good light transmittance. Heat reflective glass, also known as mirror glass, has many colors such as gold, brown, gray, purple, brown, bronze, light blue and so on.

Heat-reflective glass has a high thermal reflectivity. For example, the total reflection heat of 6mm thick float glass is only 16%, while under the same conditions, the total reflection heat of heat-absorbing glass is 40%, and the total reflection heat of heat-reflective glass can be as high as 6 1%, so it is often used to make hollow glass or laminated glass to increase its thermal insulation efficiency. Heat reflective glass coated with metal film also has the function of unidirectional image transmission.

What certificate can I take in the society? There are many kinds of vocational qualification certificates, different industries and different industry qualification certificates. Mainly divided into three categories, namely, vocational qualifications, professional and technical qualifications and technical certification. There are many specific categories. You can refer to the vocational qualification certificate website and choose the certificate you want to take according to the industry you want to engage in, because that certificate may be used when you apply.

Vocational qualification certificate, that is, vocational qualification certificate, is the proof that workers have the necessary knowledge and skills to engage in a certain occupation. It is the qualification certificate for workers to apply for jobs, take up posts and start businesses, the main basis for employers to recruit workers, and the effective certificate for overseas employment and foreign labor cooperation personnel to notarize their skill level.

What English can be tested in society now? Ielts (foreign companies generally look at this)

Public English test

Can that computer school be trusted by society? Generally, it's not a question of believing it or not, but whether he has the strength. Although he won't abscond with money, he can't learn anything and society won't admit it.

What documents can I take in the society after graduating from college? This should be determined according to your major and work, and it is not good to give a general answer. You can evaluate professional titles, take exams for various industries and vocational qualification certificates, and be promoted to undergraduate courses.

What certificates are more popular in society now? Personal advice for tour guide, accountant and English: Computer, Cisco and Microsoft certificates are needed everywhere, but the premise still depends on your own hobbies! I don't think it is very popular for tour guides to eat youth meals. Let's choose something that can develop in the long run. In response to the following answer, I agree that the computer certificate is very good, but it depends on the gold content of the certificate you took. If the general certificate is not acceptable, because anyone who wants to take it can take it, but it is difficult to take a professional certificate with high gold content. It should be said that it is very difficult, and most computer majors can't pass the exam. I think people who want to ask questions should.

Has NCEE been recognized in society? Under the leadership of the Ministry of Information Industry, NCEE was organized and implemented by the Electronic Talent Exchange Center of the Ministry of Information Industry in June 2006.

This society is recognized.

But I want to say that this is for students to take exams. Personally, I think it is not as effective as registered electrical engineer, but the latter is more difficult to test, as you know, so weigh the pros and cons!

Different cities are different. Being with him is only a test of your level, but also depends on your ability. In Beijing, new companies are generally 2000+! ~

Now those English certificates are highly recognized in society. Band 6 and Band 8, the rest are basically useless. You don't need a certificate to accompany others in an interview, and you don't even look at your diploma. It just depends on whether you have any work experience! See what industry you are engaged in and decide what certificate you need!

Are men and women equal in society now? Of course they are. . The key is to find something to accompany you all your life. .