SMM July 7: today, the spot of electrolytic copper in North China quoted a price of 10 to 80 yuan / ton for the contract of that month, with a transaction price of 49580 yuan / ton to 49650 yuan / ton. Copper in Shanghai continued to rise and returned to a high of 49500 yuan / ton, an increase of more than 500 yuan / ton. The smelter still has the willingness to raise the price, overquote more than 100 yuan / ton, but it is actually difficult to make a deal. The trader maintains the quotation at 10 yuan / ton to 70 yuan / ton, and the transaction price is concentrated in 50 yuan / ton, and the average price of rising water is 10 yuan / ton higher than yesterday. It is reported that there are many sources of wet-process copper in the north recently. Due to the low consumption and short cycle of wet-process copper in the north as a whole, the recognition of wet-process copper in the north is low, and the price difference between wet-process copper and flat copper is more than 100 yuan / ton. the price of wet-process copper is as low as 100 yuan / ton, but the popularity of wet-process copper is still lower than that of flat-process copper.