Jingning is a specialist company in safe connections for pipe equipment. Since 1998 we stand for values which are typical of a family owned company: the spirit of innovation, reliability, continuity and flexibility in thought and action. Since the 2000s, RFJD rubber expansion joints are an important part of our product portfolio. We are a reliable to our customers who count on quality engineered and durable products. Chosing RFJD expansion joints is a sound investment both in terms of performance and total cost of ownership.