object don't appear

object don’t appears in render but it is renderable and visibile in viewport…

Make sure the object’s layer is enabled in the “Layer:” section of Properties>Layers (where Render Layers are enabled).

Can you post the blend file? An object could be invisible for quite a few reasons (particle emitter, duplicated, lighting, compositing error etc etc).

yes. i solved. i check verts in duplication palette