主营产品：伸缩器,,,橡胶接头,,,伸缩接头,,,防水套管,,,钢制伸缩器,,,橡胶伸缩接头,,,压盖式伸缩接头,,,法兰式伸缩接头,,,法兰式伸缩器,,,柔性防水套管,,,钢制伸缩器,,,可曲挠橡胶接头