瑞联新材：近年来公司外销收入比例均维持在60%以上

Group 1 - The core viewpoint of the article is that Ruilian New Materials maintains a high proportion of foreign sales revenue, consistently above 60% in recent years [1] - The European market accounts for approximately 20% of the company's foreign sales revenue [1] - Sales in the European market are primarily conducted through domestic entities directly engaging in business [1]