(1) I also have the feeling that the price of steel is too low. Throughout four games (Chile, Belgium, Prussia, USA), non of my steel factories was able to make decent profit (if profit at all).
(2) I think cement demand peaks when new railroads are build, afterwards it suffers from reduced demand and becomes less (or even not at all) profitable.
(3) Yep, once production efficiency goes up, weapon and ammo factories seem to be in deep red. I think you should forgo anything except tank factories if you want profit. Although, honestly, military goods shortage can be quite crippling during a war - best have some expanded factories ready for wartime if your buy-capacities on the world marked are impeded.
(4) Cloths and furniture are early game goods, but they are quite good. Luxury versions need fancy materials, so kickstarting with regular goods is a good idea. No need for more than 2 factories of each in your country, though.
(2) I think cement demand peaks when new railroads are build, afterwards it suffers from reduced demand and becomes less (or even not at all) profitable.
(3) Yep, once production efficiency goes up, weapon and ammo factories seem to be in deep red. I think you should forgo anything except tank factories if you want profit. Although, honestly, military goods shortage can be quite crippling during a war - best have some expanded factories ready for wartime if your buy-capacities on the world marked are impeded.
(4) Cloths and furniture are early game goods, but they are quite good. Luxury versions need fancy materials, so kickstarting with regular goods is a good idea. No need for more than 2 factories of each in your country, though.