Copper: Shanghai copper spot today reported 50550-50750 yuan / ton, up 30, posted 50 yuan / ton - up 50 yuan / ton. China's official manufacturing purchasing managers' index for July was 51.7. Thursday outer plate metal reproduction collective callback, aluminum and nickel decline among the top, and copper is relatively limited decline, closing at 7103, down $ 26.5 /0.37%, Shanghai copper 1409 night plate temporarily reported 50,560 yuan. US Labor Department data released on July 31, the US quarterly labor cost index rose 0.7% quarterly rate, the highest increase over five years, is expected to rise 0.5%, 0.3% before the value is up, suggesting long-awaited The acceleration of wage growth is imminent. The medium-term trend of copper maintained upwards and short-term trend was weak, and the uptrend continued to be digested through reforming. The key resistance was at 7210/30, and the resistance was strong and the rebound was limited. Otherwise, there will be intense bidirectional market activity. The current support is in the 7010/30 and 6950/70 ranges. If the market closes below this level, there will be a second demand for roofing, putting prices in new downside pressure. Morning Shanghai copper range, the US economic data mixed, copper received pressure to keep the Shanghai spot transactions to maintain low water, most of the active holdings of goods shipments, traders shipped a higher enthusiasm to pick up the goods bargain Goods, some downstream companies have replenishment action. Aluminum: Shanghai spot domestic aluminum reported in 13910-13970 yuan / ton, down 50, premium 70 - premium 10 yuan / ton. Wuxi price reported 13950-13970 yuan / ton. The latest report released by the United States in July Chicago PMI plummeted to 52.6, 62.6 last month; in addition to the weekly number of claims for unemployment benefits increased significantly. The two data to suppress the United States and other industrial metals demand for aluminum is expected to improve. Lun Lun aluminum closed at $ 1990.25, compared with the previous day's closing price fell $ 31.75, down 1.57%. Shanghai aluminum main 1410 contract night to close at 14,015 yuan, compared with the previous day settlement price fell 90 yuan, or 0.64%. The prospects for potential aluminum technology are further enhanced and the bottoming process has been completed and pushed prices in the next few weeks or months or towards higher positions, with current resistance levels in the 2050/60 range. The proceeds are being digested by the new amendments. Support in the vicinity of 1975/85 only closed significantly lower than this, can cause short-term deeper decline, test 1920/30 low. If you break through to 2050/60 or more, then expand the upward momentum towards 2100/10 or even 2200/20. Morning Shanghai aluminum range-bound, the US announced Chicago PMI plummeted to 52.6, and the weekly application for unemployment benefits a substantial increase in the formation of pressure on the aluminum price, the mainstream of Shanghai spot transactions in 13,940 yuan / ton in the vicinity of a positive store merchant Goods, the downstream consumer bargain slightly pick goods, some companies have replenishment action.