Specification: DN32-DN4000mm
Color: Black
Media: Acid, alkali, corrosion class, oil, hot water, cold water, compressed air, natural gas, etc.
Material: Eco-friendly synthetic rubber, no pollution, no lead or other toxics.
Shock Absorption: Grade A with excellent vibration reduction.
Operating Temperature: -40~80℃ (or special designed) 

We also provide double spheres, three spheres, four spheres rubber expansion joints, you won't fail to find the right rubber expansion joints in Tengyun.

See more at http://www.tyrubberjoint.com/Product/Rubber_Joints/Single_Ball_Rubber_Joint.html#sthash.ackynJVf.dpuf
Email: sales@tyexpansionjoint.com