It emphasized the insulating joints made in our company and expected the development direction of them 文中着重介绍了我公司生产的整体式绝缘接头，并展望了整体式绝缘接头的发展趋势。
3.
Abstract : this article introduced the development process of insulating joints widely used in gas & petroleum transportation piping and the types & characteristic of it 摘要：本文介绍了我国燃气输配和石油输送管线上使用的绝缘接头的发展过程，以及该过程中绝缘接头的型式和特点。
