First, the import and export of key products have grown rapidly. From January to March, imports of mechanical and electrical equipment increased rapidly, and the quality and grade of imported equipment improved. Imports of machinery and equipment amounted to US$680 million, a year-on-year increase of 58.8%, imports of electrical and electronic equipment were US$101 million, an increase of 85% over the same period of last year, and imports of instrumentation and instrumentation were US$74.82 million, an increase of 30.1% year-on-year. The pace of export of auto vehicles has been accelerated. The province has exported 39,000 vehicles, an increase of 19,000 vehicles year-on-year, an increase of 94.2% year-on-year. Automobile and chassis exports were 270 million U.S. dollars, an increase of 112.6% year-on-year, and auto parts exports were 85.97 million U.S. dollars, an increase of 51% year-on-year. Exports of machinery and equipment amounted to US$460 million, a year-on-year increase of 41%. Electrical and electronic equipment exports were US$190 million, an increase of 41.8% year-on-year. Instrument and meter exports were US$50.38 million, an increase of 115.5% year-on-year.
Second, backbone enterprises still provide important support for import and export. The backbone enterprises continued to drive strong growth in imports and exports. From January to March, Hefei Hitachi excavator imported 240 million U.S. dollars, up 38.6 percent year-on-year, LDK LDK imported 86.03 million U.S. dollars (zero year-on-year), and Siemens VDO imported 29.23 million U.S. dollars. The year-on-year increase was 32.2%, Hefei Rongan imported 28.61 million US dollars, an increase of 57.9%; Chery Automotive exports 190 million US dollars, an increase of 81.3%, Jianghuai Automobile exports 98 million US dollars, an increase of 363.2%, Hefei Hualing electrical exports 55.84 million. The U.S. dollar increased 52.1% year-on-year, Zhongda Electronics (Wuhu) exported 41.2 million U.S. dollars, up 205628.9% year-on-year, and Wuhu Hitachi Appliances exported 38 million U.S. dollars, up 53.3% year-on-year.
Third, the import and export of electromechanical products accounted for a relatively high proportion of the general trade, and the import processing trade grew faster than the same period of last year. Imports and exports of general trade amounted to US$1.58 billion, accounting for 68.9% of total imports and exports of mechanical and electrical products, of which: general trade exports amounted to US$8.3 billion, accounting for 62% of exports of electromechanical products, general trade imports amounted to US$750 million, accounting for electromechanical products. 78.6% of the import value; import and export of general trade, processing trade increased by more than 50% year-on-year, of which import processing trade increased 102.8% year-on-year.
Fourth, Europe, South America, the United States, and ASEAN are the major export markets of electromechanical products in our province, and the growth of the US market is more significant. From January to March, the top four export markets of electromechanical products in our province were: Europe, 290 million U.S. dollars, up 55.1% year-on-year, South America, 230 million U.S. dollars, up 81.7% year-on-year, U.S., 160 million U.S. dollars, up 105.6% year-on-year, ASEAN US$140 million, an increase of 66.3% year-on-year; followed by the Gulf with US$120 million, an increase of 91.4%, Africa’s US$110 million, a year-on-year decrease of 35%; Japan’s US$76.09 million, an increase of 57.3%, Germany’s US$54.36 million, an increase of 89.3% year-on-year %, India and Pakistan 52.71 million US dollars, an increase of 85.3%.
Fifth, the import and export of mechanical and electrical products mainly rely on key cities to pull. Import and export mainly rely on Hefei, Wuhu and other key cities to pull, including: Hefei City imported 520 million US dollars, an increase of 73.5%, Wuhu City, imports 187 million US dollars, an increase of 29.3%. The cities that exceeded US$10 million in imports were: US$57.48 million in Anqing, US$30.52 million in Ma’anshan, US$18.29 million in Luzhou, US$14.11 million in Handan, US$12.97 million in Chaohu, US$12.19 million in Liu’an, and 1118 in Huainan. Million US dollars; Hefei City exported 450 million US dollars, an increase of 59%, Wuhu City exports 410 million US dollars, an increase of 87.3%. The cities with more than US$18 million worth of exports also included: 88.07 million US dollars in Bozhou City, 49.42 million US dollars in Maanshan City, 47.7 million US dollars in Xuancheng City, 27.53 million US dollars in Chaohu City, 1.98 million US dollars in Anqing City, and 18.49 million US Dollars in Handan City.
CNC milling features:
1, parts processing adaptability, flexibility, can process the shape of the contour is particularly complex or difficult to control the size of parts, such as mold parts, shell parts, etc.;
2. Able to process parts that cannot be processed by ordinary machine tools or are difficult to process, such as complex curve parts described by mathematical models and three-dimensional curved surface parts;
3. Parts that need to be processed in multiple processes after processing once clamping and positioning;
4, high machining accuracy, machining quality is stable and reliable, the pulse equivalent of CNC device is generally 0.001mm, high precision CNC system up to 0.1 m, in addition, CNC Machining also avoid operator error;
5. High degree of production automation can reduce the labor intensity of operators.
It is beneficial to the automation of production management.
6, high production efficiency, CNC milling machine generally do not need to use special fixture and other special process equipment, in the replacement of the workpiece only need to call stored in the CNC device processing procedures, clamping tools and tool data can be adjusted, thus greatly shorten the production cycle.
Secondly, CNC milling machine with milling machine, boring machine, drilling machine function, so that the process is highly concentrated, greatly improve the production efficiency.
In addition, CNC milling machine spindle speed and feed speed are infinitely variable, so is conducive to the selection of the best cutting parameters
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