While doing a search for an upcoming trailer winch project I came across this trailer manufacturer's web site that has a lot of interesting ideas that we don't see here in the US. Apparently they build mostly custom trailers that contractors and tradesmen would use. Features such as side mounted tool boxes, jerry can holders and tarp tie down rails are the norm. One trailer even had a stove for that tasty lunch while on the jobsite.They also have a page for "couplers" which are different than ours.