http://pt.agrowmetals.com/trellis-crossarms/

http://www.agrowmetals.com/trellis-crossarms/


http://www.ameritrellis.com/crossarms

--------------------------------------------------
Note added at 57 mins (2017-04-27 17:51:35 GMT)
--------------------------------------------------

As my old timer colleague Richard pointed out, it's the name of the method/system that Asker is looking for and not the actual devices, so it should be CROSS SYSTEM.

http://www.decanter.com/features/portugal-when-they-are-good...

You can still see a few tall vines snaking up the sides of poplar trees in Vinho Verde – in fact, the Mesquitas took me to view some near their estate. Later, the vines were trained over high iron structures instead of trees. More recently the vineyards have been converted to the ***cruzeta, or ‘cross’ system**, by which four vines are trained up a central crossed pole. José is now convinced that his crossed trellises must eventually go, to be replaced by single cordon structures. ‘There’s too much shade near the cross where the four vines are planted, so little sun gets to the grapes. It leads to more acidity and less alcohol, which is not our aim.’