SHANGHAI, Jul. 9 (SMM) -- Last Friday, mainstream prices of Jinchuan nickel were between RMB 122,300-122,500/mt in the morning session, while mainstream Russian nickel prices were between RMB 120,000-120,200/mt. A wait-and-see sentiment improved as prices were volatile, and downstream inquires decreased. But arbitrage opportunities allowed traders to be active, causing transactions to improve.