canonical links is what you need, so that duplicate pages link to the most relevant page.

I'm afraid I'm no Woocommerce expert, but if it's worth it's weight in salt it will have canonical link capability.

A less important duplicate page should have the following in the header of the page to promote the more relevant page.

<link rel="canonical" href="http://www.website.com/most-relevant-product" />

What this will do is promote your one page in Google and the like above the others which may not even get listed.

What it does mean is you will be seen above other sites. I dare say that the number of canonical links will add to your importance saying to google not only do I have this great page but lots of others which point to it, but I only want to take up your resource listing one.

The easiest way would be a permanent re-direct on the offending URLs.

Check the incoming variable i.e. vc and permanently re-direct if it's an offending using 301.Google when seeing the 301 will drop the URL from the index.

There is a URL removal tool in Google Web Master Tools if the URL contains any personal information.

I had a similar issue a few days ago, the index is already starting to clear up, from a corrupt XML site map.

A few years ago I added a location finder which then auto generated product content for ERIKS. This generated 1000's of URLs overnight, the problem was Google thought I was spamming it's indexes. Google does follow all links on a web page/sitemap however it's what it does with them that counts. The ERIKS Hose Technology Site http://www.eriks-hose-technology.com relies on this type of coding using Classic ASP.

I have a number of other sites which also rank highly on Google You'll find Revolvo by searching for 'Split Roller Bearings'. So it's also not as bad at ranking as some people may tend to think. I would agree however that English URLs are better than coded. The main issue here is to make sure that your main keyword is in the URI to ensure that Google knows what your page is about.

Under No Circumstances do I see this to be something you should do. I often advise clients to get any link which isn't giving value to the user off the site ASAP.

Often that includes "Site created by ..." Lowest of the low I'm afraid.

So that's a No from me!

WOW that's allot of external CSS files and allot of External JS files.I would suggest you try to reduce the CSS to just one file on any one page and also see if there's any JavaScript which isn't required for the page.

Some of the images seem to take a while to load on a slower connection too, try to keep the physical size small.

Good Luck

Dave