销售利润率在逐年提升，这表明维达纸业在进一步控制销售成本的同时也在提高

The sales profit margin is increasing year by year, which shows that Vinda Paper is also increasing sales while further controlling the cost of sales. However, although the sales profit is increasing, the increase is not large, and the increase is decreasing year by year. Therefore, Vinda Paper should formulate new plans and strategies to strengthen the company's sales profit margin, which can make the company's profitability more improved

Sales margins are improving year by year, indicating that Vida Paper is increasing sales while further controlling its cost of sales. But although sales profits are improving, the increase is not large, and the increase is decreasing year by year. Therefore, Vida Paper should develop new programs and strategies to strengthen the profit ability of enterprises, so that the profitability of enterprises can be improved.

Sales profit margin is increasing year by year, which shows that Veda paper is increasing sales while further controlling sales cost. However, although the sales profit is increasing, the increasing range is not large, and the increasing range has a decreasing trend year by year. Therefore, Veda paper industry should formulate new plans and strategies to strengthen the profit margin of enterprise sales, so as to improve the profitability of enterprises