Phenolic resins and the plastics industry: yesterday, today, and tomorrow.
酚醛树脂和塑料工业：昨天，今天，明天。
There improve the quality of service, has become a leader in the plastics industry.
有优质完善的售后服务，已成为塑料行业中的佼佼者。
There improve the quality of service, has become a leader in the plastics industry.
有优质完善的售后服务，已成为塑料行业中的佼佼者。
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