1.After tooth surface processed,the hard film ati-rust oil is applied;
2.Packed in plactic film;
3.Packed in the strip-shaped rain cloth;
4.Then packed in rubber plate with metal frame
5.Outermost is the whole waterproof cloth
When package,girth gear will be separate into two pirce,at the end face of bolts will be fixed with channel steel as support rib
to prevent deformation.