single direction sleeve expansion joint 单向补偿器

single sealed sleeve expansion joint 单一密封补偿器

no constraint sleeve expansion joint 无约束型补偿器

molding sealed sleeve expansion joint 成型填料补偿器

composite sealed sleeve expansion joint 组合密封补偿器

double direction sleeve expansion joint 双向补偿器

plasticity sealed sleeve expansion joint 非成型填料补偿器

pressure balancing sleeve expansion joint 压力平衡型补偿器

sleeve type expansion joint 套筒式补偿器