Input 90 crude oil
Output 50 rubber + 50 plastic.

At the beginning ratio is not really 50/50, you have to wait till last rafinery have 200 plastic inside. Or put there 200 plastic as income to have exact 50/50 production from beginning.

No mods needed.

Don't be lazy and rate my blueprint by clicking on stars! Other players also want to know, if this is usable, or trash. Thanks.

All my blueprints https://satisfactory-calculator.com/en/blueprints/index/index/idU/30791/user/Katoo
All my megaprints https://satisfactory-calculator.com/en/megaprints/index/index/idU/30791/user/Katoo