SMM July 20: today, the spot of electrolytic copper in North China quoted a price of 30 to 100 yuan / ton for the contract of that month, with a transaction price of 51270 yuan / ton to 51500 yuan / ton. Shanghai copper continues to consolidate in the 5-10 moving average range, mostly in the 51250 / ton range of 51350 yuan / ton. Copper absolute value is lower than last week, smelters and traders extended last Friday's market conditions, rising water continued to rise, quoted as high as 100 yuan / ton, low water 30 transactions remain active, but the low price supply is small, the market quotation is firm, it is difficult to lower the price, and the average discount price is 15 yuan / ton higher than last Friday.