 The grain direction of a sheet (the orientation along which the majority of the cellulose fibers settle) is generally parallel to these chain lines.April 25 SC

April 25 Sports Club (, "Sa i o ch'eyuktan"), or 4.25 SC for short, or sometimes "April 25 National Defence Sports Club" (4.25'국방체육단', "Sa i o ch'eyuktan "Kukpang ch'eyuktan""), is a multi-sports club in North Korea based in P'yŏngyang, primarily known outside of North Korea for its men's and women's football teams.The club belongs to the Ministry of People's Armed Forces; all members of the professional teams (male and female) are considered officers of the Army.