9、具有良好的综合性能，所以它广泛用于化工、建筑、给水、排水、石油、轻重工业、冷冻、卫生、水暖、消防、电力等基础工程。
10、根据材料不同可制成耐酸、耐碱、耐腐蚀、耐油、耐高温、耐辐射、耐磨、耐老化等各个品种，适应多种介质和环境。
The advantages of double ball rubber joints are:
1, the design of the product itself is longer than that of the single ball type, and has good damping and noise reduction effects.
2. It has good performance of telescopic displacement.
3, the service life is longer than that of the single ball.
4, the probability of using double ball rubber joints abroad is greater than that of single ball rubber joints.
5, small volume, light weight, good elasticity, easy installation and maintenance.
6. After installation, the transverse, axial and angular displacement caused by vibration of pipeline can be absorbed; it is not restricted by the dissymmetry of pipeline and the non-parallel flange.
7, after installation, it can reduce the vibration and noise generated by pipes and pumps.
8. Internal seamless high-pressure rubber joints, choose different rubber materials in high-temperature, acid-alkali resistance, oil-resistant pipelines to effectively prevent the corrosive medium on the rubber joints of the corrosion of the inner wall, improve service life.
9. It has good comprehensive performance, so it is widely used in chemical industry, construction, water supply, drainage, petroleum, light and heavy industries, refrigeration, sanitation, water heating, fire protection, electricity and other basic projects.
10. According to the different materials can be made into acid-resistant, alkali-resistant, corrosion-resistant, oil-resistant, high temperature-resistant, radiation-resistant, wear-resistant, aging-resistant and other varieties, adapt to a variety of media and environment.
