The National Bureau of Statistics released data on the 13th. From January to February of this year, the value-added factor of value-added industries above the designated size of the country increased by 8.6% year-on-year. Among them, in February the chain increased by 0.61% last month.
Spiral Tap is more suitable for machining blind hole threads, and the chips are backwards during machining. Due to the helix angle, the actual cutting front angle of the tap increases as the helix angle increases. According to experience, the helix angle of the processed ferrous metal is selected to be smaller, generally around 30 degrees, to ensure the strength of the helical teeth. When processing non-ferrous metals, the helix angle is chosen to be a little larger, and it can be cut at about 45 degrees.
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In terms of sub-sectors, from January to February, the value added of 39 industries in 41 major industries across the country maintained a year-on-year growth. Among them, the agricultural and non-staple food processing industry increased by 9.3%, the ferrous metal smelting and rolling processing industry increased by 6.8%, the non-ferrous metal smelting and rolling processing industry increased by 13.4%, and the automobile manufacturing industry increased by 15.5%. By product, from January to February, a variety of products increased year-on-year. Among them, power generation increased by 5.5%.
In terms of investment, from January to February, the country’s investment in fixed assets (excluding rural households) totaled 302.83 billion yuan, a nominal increase of 17.9% year-on-year. In terms of sub-industries, the primary industry invested 40.6 billion yuan, a year-on-year increase of 20.9%. The secondary industry invested 1.1705 trillion yuan, an increase of 13.7%. The tertiary industry invested 1,877.2 billion yuan, an increase of 20.8%. Among them, the national investment in private fixed assets was 191.2 billion yuan, a year-on-year increase of 21.5%, and private fixed-asset investment accounted for 63.1% of the country's total.
From January to February, the total investment in real estate development in the country reached 795.6 billion yuan, a nominal increase of 19.3% year-on-year, and the growth rate was 0.5 percentage points lower than that of the previous year; the area of ​​commercial housing sold was 104.66 million square meters, which was a year-on-year decrease of 0.1%. As of the end of February, the area for sale of commercial housing was 513.97 million square meters, an increase of 21.02 million square meters compared to the end of last year, of which, the area for residential sales increased by 17.7 million square meters. In February, the real estate development climate index was 96.91, which was 0.3 points lower than last December.
In terms of consumption, from January to February, the total retail sales of consumer goods in the country totaled 4.2281 trillion yuan, a year-on-year increase of 11.8%, and an actual increase of 10.8% after deducting price factors. Among them, the retail sales of consumer goods above the quota increased by 9.5%. 
