Resolved hikashop customfields import problem

Hello.

When i import Hikashop customfield from other database, and next delete this (__fields, __products_ both), and next try to reimport same namkey this error messega appear:
Duplicate entry '1-hikashop_product-com_hikashop-import' for key 'component_name_table'

Other: i would like import lot of custom field to hikashop with title, value, and MEASURE UNIT post tag.
Front end:

field title - value - unit
height - 180 - mm

But in the Hikashpo admin - customfields (text), no possibilty.

Is there any solution?

Thank You