What happened to the market on the day when the leading stocks of chemical fibers rose together?

Recently, with the improvement of liquidity, the A-share market has rebounded in an all-round way, and the chemical fiber sector has also risen sharply. Especially on March 15th and 18th, when the whole A share fell, the chemical fibre sector rose sharply. Monday's 5.87% rise was the second highest in the two cities, after the brewing industry's 6% rise.In the future, the big chemical industry has increasingly become a giant game.