On March 21, the silica commodity index was 10586

On March 21, the commodity index of white carbon black was 105.86, the commodity index of ethylene glycol was 55.11, the commodity index of styrene was 75.24, the commodity index of pure benzene was 78.26, and the commodity index of ammonium chloride was 87.62

on March 21, the commodity index of white carbon black was 105.86, the commodity index of ethylene glycol was 55.11, and the commodity index of styrene was 75.24. The vortex flowmeter fixture also has high requirements, the commodity index of pure benzene was 78.26, and the commodity index of ammonium chloride was 87.62. Paint,

March 21 White 2. The surface of the exposed parts of the experimental machine that are not painted should often be coated with some antirust oil. The carbon black commodity index is 105.86, the ethylene glycol commodity index is 55.11, the styrene commodity index is 75.24, the pure benzene commodity index is 78.26, and the ammonium chloride commodity index is 87.62

March 22, 2021

March 21 white carbon commodity index is 105.86, the same as yesterday, a decrease of 3.42% from the highest point 109.61 () in the cycle, This was 18.40% higher than the lowest point of 89.41 on October 7, 2016. (Note: the cycle refers to that DuPont high-performance materials will increase the global sales of zytelreg; and delrinreg;... So far)

on March 21, the ethylene glycol commodity index was 55.11, unchanged from yesterday, down 47.45% from the highest point 104.87 () in the cycle, and up 64.36% from the lowest point 33.53 on April 2, 2020. (Note: the cycle refers to the present)

on March 21, the toluene commodity index was 67.42, unchanged from yesterday. For example, for engine utilization, door structure, pedal, front end, seat shell, underbody and cockpit transverse members, it was 43.08% lower than the highest point 118.44 () in the cycle, and 86.55% higher than the lowest point 36.14 on April 6, 2020. (Note: cycle refers to so far)

on March 21, the styrene commodity index was 75.24, unchanged from yesterday, down 37.36% from the highest point 120.11 () in the cycle, and up 83.11% from the lowest point 41.09 on April 2, 2020. (Note: cycle refers to so far)

on March 21, the pure benzene commodity index was 78.26, unchanged from yesterday, down 38.38% from the highest point 127.00 () in the cycle, and up 166.55% from the lowest point 29.36 on April 4, 2020. (Note: cycle refers to so far)

on March 21, the ammonium chloride commodity index was 87.62, unchanged from yesterday, down 13.58% from the highest point 101.39 () in the cycle, and up 84.89% from the lowest point 47.39 on May 7, 2015. (Note: cycle refers to the present)