Hannover messe are holding in 8-12 April 2013,is valued by companies and organizations around the globe as the world's premier industrial technology showcase.OKE already dispatched staff to Fair,and will introduce oke's new technology of coupling,pulley,sprocket,taper bush,chain ,bolt on hub motor,motor mount ,motor slide rail etc.Please focus on our websit: www.okemachinery.com. we will show our development.please do not hesitate to contact us when you are interested in any item.