@rd77,, thanks infos,, sounds to me more like a big reason and not a simple.
After all, ships constructionwise (looks) not much has changed in Asia since buying construction plans. As for inventions and innovations, not much either as far as I know.
I still remember the words of a head of superintendents department of a big german company when I asked
him, how was the sea trial trip (three ships in 10 days) and his answer : It should become law that chinese are not allowed to build ships, if it weren,t for the cheap prices , nobody in his sound mind would order ships there !!!
Quality improved since I hear,(wasn,t a long time on a chinsese constructed vessel) but even that seems a long lerning curve which is not achieved yet