"Sorry, but why you want extra types even in Equipment module you can create your own equipment. And for licences you can choose service type product.

Thanks. "

Because it will be more easy for me to find my product, easier for my research. 

Because I have problem with the internal reference, in fact the internal reference appear in my quote and i dont want that. 

Have u got a solution for that? 

Thank a lot

In your custom module, you can redefine the particular field by inheriting the product.template model.

class product_template(models.Model):

         _inherit = 'product.template'

         type = fields.Selection(options, string="Type")

Like the above, it is easy if you copy and paste the base field, and put it in your inherited model, and add the appropriate opltions along with the previous options if you need.