Constant CMD_QOT_PULL_STATIC_INFO 

pub const CMD_QOT_PULL_STATIC_INFO: u16 = 6_747; // 6_747u16

CMD 6747: NN_ProtoCmd_Qot_Pull_StaticInfo

拉一组 stock_id 的最新静态信息 (CSStockItem), 用于期货主连合约 ReqMainLinkContract 路径返当前主力合约真实 stock_id + code.