I cant create production contracts and control these

I have 3 companies

Advanced Effectivity
Advanced Effectivity
Advanced Quality Products

I cant create production contracts, sell them to my own corporation, buy their products

any help
theirs no option in the creation of production contratcs
even in direct sales no option to sell directly

It is overhead and not a material required for production so you can not contract them, or buy them directly.

So you can't do this. Because of this you can raped with Q300 goods unfortunately, but there isn't a way around this. You just sell those out, people can't choose their cost preference so you can make good money.