and the domestic substitution process in the domestic market needs to continue to accelerate.

α-olefin refers to a single olefin with a double bond at the end of the molecular chain. the molecular formula is r-ch=ch2. linear α-olefins, also known as linear α-olefins, or lao for short, refer to c4 and above high-carbon linear olefins containing only a single terminal double bond in the molecule, including butene-1, hexene-1, and…