SHANGHAI, Apr. 24 (SMM) – SHFE 1507 aluminum contract failed to break though the 20-day moving average as bulls were cautious about entering the market ahead of the weekend. The most active contract inched down at the tail of the afternoon session before ending at RMB 13,230/mt. Trading volumes totaled 28,630 lots, with positions up 4,616 to 123,644.