单向双向：某些产品的手续费只在开仓时收取，有些则在开仓和平仓时都收取； We are sending the requested data files to the e mail now. If you don't acquire the email, make sure to Check out your spam folder ahead of requesting the documents again. 今日持仓/昨日持仓：中国期货通常指定平今仓和平昨仓来收取不同的费用； Traders and analysts can use this info to assess the profitability of the co... https://richardj641inr4.ltfblog.com/profile