>First you need to understand that none of these things are practiced under social democracy, those decisions are still decided by the owners of industries
>how many hours employees may work
I don't know about under Hitler. I was referring more to FDR. In the US, there are laws that say a company can't call in a worker for less than so many hours, laws that say if a part time worker works more than so many hours in a week for so many weeks, he must be made a full time employee, laws governing some industries which prohibit working more so many hours in a week...
>how much money employees are required to be paid
Minimum wage laws, overtime laws
>who is permitted to be an employee
A business can't just hire anyone. They need to be citizens, over a certain age in most cases, or at least have a permit from the government
>who is allowed to purchase the product
The government restricts this all the time, including restricting who can buy weapons or dual use products, restrictions on the age of customers, restrictions on selling drugs (both the legal and illegal kind), it restricted the purchase of gold for decades, and there was a near blanket ban on exporting oil for a long time
>who is allowed to supply raw materials
The government enforces import quotas and bans, and it back-doors it with import taxes
>the price of goods sold
Government dictates this to utility and insurance companies in most states, it frequently interferes in the price of drugs, it dictates the price of goods on government owned land, like at rest stops, it dictated the prices to AT&T for decades while it was enforcing AT&T's phone monopoly
>the level of profit margin the nominal owners are permitted to earn
Again, utility and insurance companies, Carter's Windfall Profits Tax, a progressive income tax
>just because you nationalized some industries doesn't mean your whole system is now functioning from a socialist standpoint
There are degrees. It's not all or nothing.