The Spring Canton Fair in 1985 officially opened on April 10, which was also the fourth time Duan Yun participated in the Canton Fair.

Different from the previous three times, this year's Canton Fair has a lot of private enterprises to participate, mainly from Shenzhen's private enterprises, which are the best of Shenzhen's private enterprises in recent years, in order to reflect the construction achievements of the Shenzhen Special Economic Zone in the past two years, the Shenzhen Municipal Government has also specially arranged booths for these private enterprises.

However, the booths of these private enterprises are very small, and even if they have the opportunity to participate in the Canton Fair, the current domestic private enterprises can only play a supporting role, which is more like an administrative measure made by the Shenzhen government for propaganda considerations.

Duan Yun's representative of "Daxing Electronics" in the household appliances exhibition hall still occupies a very conspicuous and prominent booth, after all, this is a rare "trump card" in the Shanxi Light Industry Department, so the resources that should be given will definitely not be stingy.

However, Duan Yun's situation this year is a little different, his electronics factory has no new products that can be obtained, and he can only eat the old money for the time being, but relying on the relationship with foreign suppliers in the past, it should not be a problem to get some foreign trade orders.

For fast-moving consumer goods such as the electronics industry, the speed of upgrading is very fast, because Duan Yun's product technology research and development institute has just been established, and the pace is a little slower.

With the introduction of a large number of foreign production lines in various provinces in China, this year's household appliances are particularly rich, both in terms of type and quality, compared with last year.

In addition, what makes Duan Yun a little vigilant is that his Tianyin brand subwoofer audio already has a strong rival in China, that is, "Feile Audio", which issued the first stock of New China on November 14 last year.

Feilo Audio Company is a Shanghai company, operating complete sets of equipment and contracting hotels, theaters, gymnasiums and other audio facilities design and installation projects, its predecessor is Shanghai Yaming Bulb Factory, this factory was founded in 1923, is China's first national lighting enterprises, but also China's first light bulb manufacturer, its "Ya" brand is a well-known national brand in the past century, when many bulbs printed under a "Ya" word, that is their factory products.

This situation made Duan Yun feel some pressure, the competitor is an old national store, the first joint-stock enterprise in New China, and with the strong support of the Shanghai Municipal Government, in the face of such an opponent, Duan Yun must not relax his vigilance.

At this Canton Fair, Feilo Audio Company also participated in the exhibition, Feilo Company was only a dozen meters away from Duan Yun's booth, and the booth was also very large, which shows that the Shanghai Municipal Government still has a lot of support for them.

Compared with Duan Yun's subwoofer audio, the audio products produced by Feile Audio Company look very sophisticated, the appearance is calm and atmospheric, and the variety is also quite complete, from the pocket small speaker to the special speaker for the large song and dance theater, the variety is rich, and the quality is absolutely handy. All right

In fact, Duan Yun also thought about turning his electronics factory into a listed joint-stock company, but in terms of the current national conditions, it is not easy for private enterprises to issue shares to the society without accumulating funds, and they need the support of the local government and banks.

In addition, Duan Yun's current enterprise can also borrow loans from the bank, once it becomes a joint-stock company, the electronics factory is susceptible to the influence of shareholders, which may have a negative impact on the future development of the enterprise, so Duan Yun is not ready to convert the company into a joint-stock system in the short term, and now it is a critical period for the development of the enterprise, and he cannot hinder the development of the enterprise in order to raise funds.

The first day of the Canton Fair was very lively, Duan Yun was quite busy from morning to night, constantly introducing products to foreign businessmen from all over the world, his wife Cheng Qingyan would come to the Canton Fair to help her husband sell products together after dealing with the company's affairs, the couple cooperated quite tacitly, and the booth of Tianyin Electronics Factory was always the most popular one in the household appliances exhibition hall.

And when Duan Yun and his wife were actively promoting products at the Canton Fair, the Product Technology Research Institute of Shenzhen Tianyin Electronics Factory was also brightly lit all day and night, and dozens of technicians led by Zhao Xuewu worked overtime to develop new products and modify equipment.

“...... This polydiphenyl ether derivative non-weft band referred to as DPO belt, is a new product developed by me in the Institute of Science and Industry Commission, compared with our traditional high-temperature and high-speed motor bundling diphenyl ether resin, high temperature resistance is stronger, with good high-temperature bonding strength, as well as corrosion resistance, radiation resistance, suffocation and other advantages, can operate under harsh conditions of high-temperature and high-speed electric speed bundling, the most important point is that the raw materials are abundant, the price is low, and it is the most suitable for use in our new micro-motor of the tape recorder. At this time, in a conference room of the research institute, an old professor pointed to the design drawings and said to everyone.

This old professor is the only professor in the Department of Materials among the five retired professors of the School of Mechanical Engineering, named Jiang Dongming.

Jiang Dongming is silent, but the degree of professionalism in materials is undoubted, he has participated in the research of some key military projects of the country many times, and has twice gone abroad to the Soviet Union to investigate, and studied at Moscow Polytechnic University for half a year.

The polydiphenyl ether derivative Dpo band he proposed this time was actually a result of research when he participated in national defense projects before, but later for various reasons, this technology was not adopted by the military, so that Jiang Dongming's scientific and technological achievements were sealed and hidden.

In fact, not only Jiang Dongming, but also several other retired professors who came to Shenzhen this time have also mastered some military science and technology, some of which have been applied to the domestic military industry at that time.

Before the 80s, the "military-to-civilian" technology was strictly prohibited, and the national industrial system was divided into two different systems: military and civilian, and the result was that they talked to themselves and each said their own thing, resulting in a long-term low conversion rate of national defense scientific and technological achievements.

And the real start of the conversion of China's military industry to civilian use was. In the late 70s and early 80s of the 20 th century, the background was proposed by the Third Plenary Session of the 11 th CPC Central Committee in 1978, which shifted the focus of work to socialist modernization, and the corresponding major adjustment of China's military industry was also carried out, from mainly serving the military in the past to combining the military and the civilian population to protect the army and turning it into a civilian use, focusing on serving the national economy and the people's livelihood.

Jiang Dongming's technology has not been adopted by the military, nor does it involve the core technology of military secrecy, so it is completely legal and reasonable for him to use it for the research and development of new products in Duanyun Electronics Factory, and no one will care about this matter at all.