SHANGHAI, Jul. 3 (SMM) –Spot aluminum largely traded between RMB 12,490-12,500/mt in Shanghai on Friday, discounts of RMB 90-100/mt over SHFE 1507 aluminum contract, versus RMB 12,480-12,490/mt in Wuxi, and RMB 12,510-12,520/mt in Hangzhou. Downstream demand picked up before the weekend, but ample supply prevented prices from rising.