Fundamental analysis: the euro zone retail sales in June + 2.4%, the highest in March 2007 to a new high. US factory orders in June rose 1.1%, significantly better than expected. US August IBD consumer confidence index fell to 44.5. China 's cross - strait trade agreement began at the end of August. Operational recommendations: Copper 1410 break through the recent support for 50000 continue to shock downstream, the formation of M head may be the proposed short-term close attention to whether the 49500 near the effective support again, effectively short-term trading, while empty one can re-enter the participation and holding Have. Specific reference interval: 49400-49800. Closing in 50000 below the empty single small warehouse.