SMM July 27th: today, the spot of electrolytic copper in North China quoted a price of 40 to 100 yuan per ton for that month's contract, with a transaction price of 51640 yuan / ton to 51850 yuan / ton. Shanghai copper pressurized 52000 yuan / ton along the 51700 yuan / ton line consolidation, the market maintained last Friday quotation, copper price shock finishing, downstream bargain buying, the overall transaction slightly improved. The replenishment brought by the low price makes the rising water firm. The lower limit is 40 yuan / ton, the upper limit is 100 yuan / ton, and the average price of rising discount is the same as last Friday.