Shanghai Michigan Mechanical (SMM) since 2005, has been winning our customers hearts by holding the mission to provide top quality Custom gears and shafts for aircraft,Robotics,crusher and all kinds of gearboxes.

SMM engineering support and service will accompany you all the way through the whole cycle of product design,production and after-sales. With our packaged professional knowledge and experience, SMM will provide you with fast and premium service guarantee.