Since the invention of Ductile Iron, also known as Spheroidal Graphite Iron or Nodular Cast Iron in 1949, it has become the most preferred pipe material for water supply and pressure sewerage applications around the world.ince the invention of Ductile Iron, also known as Spheroidal Graphite Iron or Nodular Cast Iron in 1949, it has become the most preferred pipe material for water supply and pressure sewerage applications around the world.
The 1994 Federal Register TRI listing of chlorsulfuron (59 FR 1788, January 12, 1994) also cited a slight treatment-related decrease in maternal fertility in the F3 generation observed in a rat chronic toxicity study (Ref.
LÃ¥ngfil, a more elastic variant of filmjÃ¶lk was introduced in 1965; lÃ¤ttfil, filmjÃ¶lk with 0.5% milkfat was introduced in 1967; and mellanfil, filmjÃ¶lk with 1.5% milkfat was introduced in 1990. In 1997, Arla introduced its first flavoured filmjÃ¶lk: strawberry flavoured filmjÃ¶lk, the flavoured filmjÃ¶lk was so popular that different flavours soon followed.