China’s transparent PP output continues to rise, with the 800E grade having the highest output
Transparent polypropylene (PP) has transparency, high gloss, and good processing performance. It is used in medical, household appliances and other fields. The medical field is the most mature market …
my country’s petroleum asphalt production has declined, with Shandong having the largest production
Petroleum asphalt is a product of crude oil processing. It mostly appears as a black or dark brown viscous liquid or solid at normal temperatures and pressures. Its components are mostly hydrocarbons …
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