I wanna move product category order from Magento 2 to Magento 1.

what is the best way for this? I create export from product and import to Magento 1 by default tools on manage but I get some error like

product type does not match and....

so that does not work.

What is different between mg1 DB and mg2 DB and it impossible to use mg2 DB for mg1? and maybe we move some table between tow database?