Help! Who knows what the N firsts of the new China created by Zhuzhou are?

(16) 1986, Liling Physicochemical Porcelain Factory designed and manufactured the first domestic zinc pot ceramic pressure valve core. This is an important part of hot dip galvanized wire equipment for metallurgical industry. Better than steel shaft, long service life, and can replace imported products. (17) Xianghua Machinery Factory designed and manufactured the first "Songhe" 660mm inflatable anti-theft bicycle in China. It has an inflator and an anti-theft device with a lock. It is a new type of bicycle with inflatable and anti-theft functions. Its structure is novel, beautiful and durable, and it is the most ideal means of transportation for towns and tourism. Obtained the national patent on 1988. (18) 1987, Zhuzhou machinery research institute designed and manufactured the first ZC- 106 automatic developing machine for photosensitive materials in China, which has the characteristics of speed regulation, automatic temperature control, automatic circulation replenishment of liquid medicine and strong adaptability of photosensitive materials. Can develop all kinds of color and black and white plastic-coated photographic paper and film. (19) 1988, Zhuzhou Communication Components Factory of the Ministry of Posts and Telecommunications designed and manufactured the first low-voltage lightning observation instrument jujube lightning counter used in communication, hydropower, transportation, meteorology and other departments in China. (20) 1963, Zhuzhou Ramie Textile Printing and Dyeing Factory spun 54 single-yarn ramie polyester for the first time in China. Later, ramie blended with other fibers was successfully developed, which broadened the field of ramie textile production. After 1980, pure ramie fabrics of 60, 72 and 84 were spun for the first time in China, and the yarn fineness caught up with Japan. (2 1) 1969, Zhuzhou Cemented Carbide Factory developed the key raw materials and components for launching intercontinental missiles for the first time in China. 1980, after China successfully launched an intercontinental missile into the South Pacific, the Central Committee, the State Council and the Central Military Commission sent congratulatory messages to the factory. 1982, the factory took the lead in developing a new type of key component material for electric light source and xenon lamp anode tungsten products, and its life, purity and density reached or exceeded the standards of Cervini in the United States. The factory also developed high-temperature molybdenum (GHM) wires for electric vacuum, electronics, aviation, metallurgy, chemical industry and special lamp industries. (22) 1986, Zhuzhou foundry designed and manufactured the first new composite alloy hammer in China, which can be widely used for crushing materials in building materials, metallurgy, coal, electricity and other industries, with safety, reliability and long service life. Product with the first output in China (23) The production scale of Zhuzhou Cemented Carbide Factory has increased from the original designed annual output of 500 tons to over1.600-2,000 tons, and the number of varieties and models has increased from the original design of 502 to 32,000, ranking first in China. (24) Zhuzhou Smelter has an annual output of 654.38+million tons of electrolytic zinc, 70,000 tons of electrolytic lead, 400 tons of electrolytic cadmium, 8,000 kilograms of refined indium, 300 tons of refined bismuth and about 33,000 tons of hot-dip galvanized alloy, ranking first in the country. (25) Zhuzhou Chemical Plant won the national silver award for liquid sulfur dioxide, with an annual output of about 7,000 tons, ranking first in the country in terms of production and sales. (26) Zhuzhou Ramie Textile Printing and Dyeing Factory uses soluble vinylon and ramie fiber to produce high-grade pure linen fabric-60× 60 Li Shuang gauze, with an annual output of more than 2 million meters, ranking first among domestic manufacturers in the same industry. (27) Zhuzhou Glass Factory started the production line winding glass in 1950s. 1985 has expanded the production scale and improved the quality through technical transformation. Its products are white in color, high in light transmittance, strong in bending resistance, good in earthquake resistance and fire resistance, not lacking in cracks, but not scattered, and the flame can't burn through, ranking first in the country in middle-aged sales in modern industry and high-rise building industry. (28) The high-grade underglaze colorful jade western-style tableware produced by Liling Liqun Porcelain Factory is white and delicate, and the glaze color is crystal clear. Its shape is an internationally popular octagon with an outer circle and an inner side, which is both varied and harmonious. Marketing in high-class hotels and restaurants all over the country, the production and sales volume ranks first among domestic counterparts. (29) The new frequency-sensitive rheostat B04 produced by Zhuzhou Electric Furnace Factory is started occasionally under heavy load and light load. After the product structure was not improved in 1970s, its electromagnetic performance and mechanical performance were in a leading position in China, selling well in 27 provinces. From 65438 to 0988, it has grown to an annual output of 400 sets, ranking first among peers in China. (30) Zhuzhou Bridge Factory has an annual output of more than 6.5438+200,000 concrete railway sleepers, accounting for a quarter of the national total output and ranking first among domestic counterparts. (3 1) Zhuzhou organic chemical plant passed the technical transformation in 1987, which increased the annual output of diethyl oxalate sold at home and abroad from 750 tons to about 1500 tons, ranking first among the domestic counterparts. (32) The asbestos tiles with silk produced by Zhuzhou Fiber Cement Products Factory are sold all over the country, with an annual production and sales volume of more than 250,000 pieces, ranking first among domestic counterparts.