Move supplies between industry

[RestlessBear]

So I have a city that has a tool factory, and it happens to already have a steel mill as well. is it possible to have the steel mill just send it's steel straight to the tool factory? I have not been able to see how to do this yet, if not seems kind of silly, unless if I need a warehouse, but again kind of silly.

[Devilhunter]

Do you own a steel mill or tool factory?
If yes, then you can use local market menu of your enterprise and set autotransfer.
If you don't own any of those, then you can:
1) builld a warehouse in a city (of course if there is a free land) and set there autotransfer;
or
2) buy Best Friend and order it to buy 1 steel and then steel 1 steel.

The route for your train should consist of two stations. For example,
Baltimore:
Unload: nothing
Load: 1 steel from a steel mill
Baltimore:
Unload: 1 steel to a tool factory
Load: nothing

[RestlessBear]

I owed both. I guess the question is how? I didn't see anything about auto transfer. I'll take a look at it tomorrow and hopefully I'll experiment in sandbox mode or something. Sometimes I know I'm blind to things or I just didn't get where I had to click. I'm discovering more and more functions here and there but usually it is on accident.

[coenvijge]

As devilhunter wrote, for autotransfer you need to have (or build) a warehouse. If you don't have it you can also use a train as mentioned above.
Note that instead of buying a extra Best Friend you also can use a train that is already making a stop at the station, just instead of the normal stop give it two stops. (and let it load steel at the first stop and unload it to the tool factory at the second stop) and then go on with the normal tasks.

[Devilhunter]

https://i.imgur.com/beub2GC.jpg
1. Select your tool factory.
2. Click [City Market] button.
3. Find there your steel mill and select its output - steel.
4. Click on the button below to create an auto-tradaing rule.
5. Select the amount you need folling the rule described*.
6. Click Apply. And it's done :D

*You can do the same for the steel mill and move steel to the tool factory. However the rule will be inverted.
When you take something (like when a tool factory takes steel) you specify the minimum amount of steel you want to see in your tool factory.
When you give something (like when a steel mill sends steel) you specify the maximum amount of steel you want to be stored in your steel mill. All the excesive steel will be sent to the specified factories.