Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for Axial Ball Thrust Bearing, Track Pulley Ball Bearing, Double Groove Ball Bearing, Pillow Ball Rod End Bearing,Cone Roller Bearing. Should further information be required, please contact us at any time! The product will supply to all over the world, such as Europe, America, Australia,Pretoria, Sierra Leone,El Salvador, venezuela.We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information and we will offer you competitive price list then.