报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2018-12-31,2017-12-31,2016-12-31, 应收账款周转率(次),4.16,2.73,1.22,5.22,4.47,2.79,--,4.34,--,2.66,--,--,--, 应收账款周转天数(天),64.91,65.89,73.78,69,60.43,64.63,--,82.9,--,67.8,--,--,--, 存货周转率(次),1.15,0.85,0.43,1.59,1.13,0.8,--,1.21,--,0.64,1.46,1.43,1.4, 固定资产周转率(次),--,0.92,--,2.29,--,--,--,--,--,--,--,--,0.76, 总资产周转率(次),0.37,0.26,0.12,0.55,0.42,0.34,--,0.58,--,--,--,--,0.76, 存货周转天数(天),235.64,210.6,209.06,226.1,239.34,224.38,--,297.47,--,280.99,245.75,251.54,256.92, 总资产周转天数(天),724.83,694.44,746.89,657.05,646.71,533.02,--,625.43,--,--,--,--,476.69, 流动资产周转率(次),0.6,0.42,0.19,0.88,0.65,0.55,--,0.95,--,0.5,1.05,0.97,101.6, 流动资产周转天数(天),451.51,433.21,470.96,409.84,416.8,324.44,--,377.12,--,361.52,344.04,372.67,3.54, 经营现金净流量对销售收入比率(%),0.27,0.22,0.13,0.3,0.38,0.34,0.1,0.31,0.3,0.3,0.19,0.22,0.32, 资产的经营现金流量回报率(%),0.1,0.06,0.02,0.14,0.14,0.11,--,0.16,--,0.09,0.12,0.14,0.24, 经营现金净流量与净利润的比率(%),1.21,1.07,0.72,1.36,1.46,1.27,0.36,0.97,1.08,1.19,0.8,2.65,2.3, 经营现金净流量对负债比率(%),1.03,0.62,0.17,1.45,1.51,1.1,--,1.46,--,0.71,0.82,0.89,0.98, 现金流量比率(%),110.12,65.02,17.29,151.46,157.89,116.11,--,154.24,--,73.39,84.72,91.35,99.4,