Sumidagawa Shipyard is the shipyard in Japan founded in 1913.
According to PR-model, sumidagawa.co.jp is ranked 1,318,010th in multilingual Wikipedia, in particular this website is ranked 128,267th in Japanese Wikipedia.
The website is placed before christiedigital.co.uk and after mryantaylor.com in the BestRef global ranking of the most important sources of Wikipedia.