The Lun lead positive line closes, the high level touches the low platform box top, the short-term wants to break through effectively needs to put up the quantity, if holds not to put up the quantity, needs to carefully Lun lead to give up the increase; It is not difficult to find that Shanghai lead trend is far weaker than Lun lead, if the rise in the day, the need for short high positions to crack down; SMM1# lead prices are expected to rise 50 to 75 yuan / ton today.