Siyang Marine Diesel Engine Spares Catalogue N485J-3 45 pages publ. – no date given   < 1 MB file

Siyang Marine Diesel Engine Operation Manual N485J 53 pages publ. October 2002   1 MB file

Siyang Marine Diesel Spares List 380J-3 48 pages publ. October 2008 < 1 MB file

Siyang Marine Diesel Engine Operation Manual 380J-3 29 pages publ. December 2003   < 1 MB file