Use the material:Rubber, oxidize the iron, the magnetism record material etc..  

The Σ type mixs blend the oar is the most general pattern, it apply with outside knead to match and slot inside must compare to move greatly of the knead of the reason material matches the operation, main function in two heavy alignment method of oars, is a circumstance that squeezes to dehydrate the operation, the most suitable match to use the Σ type to mix blend the oar.
Use the material:Rubber, oxidize the iron, the magnetism record material etc..
Capacity
Clip a set of dint pressure
Mix the vacuum degree inside the urn
Mix the oar turn soon
Electric motor power
Mix an urn of anticipates to revolve the angle.
The fish tail type mixs blend the oar to be applicable to to the cellulose material of knead and match operation..