Imprt meta vai CSV issue

Hello,
I have a issue with WC Product CSV Importer – I add meta field in CSV file and it add same value for each product.
For example:
product id 1 – Product name – price / kg
product id 2 – Product name – price / kg

But in CSV file, values of id 1 and id 2 is different.

I want id 1 to be price / kg and id 2 to be price / unit .

Thanks in advance!