Including keywords into URLs multiple times

Guys, let's say I have multi-level structure of commercial landing pages. On level 2 I have URLs that include keywords with word "service". This section of the website is a category, that breaks up to smaller parts, each of those being a separate landing page, optimized for different keyword.

The question is - is it OK to repeat some words/phrases in URLs of pages that have different order?

Example: *domain_name*. com/product-making-service/primary-product-making-service

The page "/primary-product-making-service" represents a specific product that comes from the category "/product-making-service"

How not to be too spammy in the URLs? Are such long keyword-stuffed URLs considered "healthy" from Google's standpoing?

Looks terrible and while I do not have case study to prove it I think it should be avoided, always. Not to mention that is pointless as not giving you any value. Just see how it looks like in this example:
bestcasinoreviewsonline.bla/casinos/casino-reviews/mobile-casino-reviews/bet365-mobile-casino-review/ -> its ridiculous.

No, don't do it. It looks way better only if it's not repetitive, for example
domain.com/keyword-tutorial
is way better than
domain.com/keyword/keyword-tutorial or domain.com/tutorials/keyword/keyword-tutorial
Repeting your keywords won't add any benefit and looks unprofessional

Froz3nz said:

No, don't do it. It looks way better only if it's not repetitive, for example
domain.com/keyword-tutorial
is way better than
domain.com/keyword/keyword-tutorial or domain.com/tutorials/keyword/keyword-tutorial
Repeting your keywords won't add any benefit and looks unprofessional

Click to expand...

Shorter URLS are better keyword stuffing in url is horrible for user experience and will definitely be treated poorly by google