it' supporting bar is 2 meters long
it can be changed in the length of 2.00m to 4.80m the link-pole can be adjusted at will
01.The supporting bar have the most commoly used are 1950mm ,2550,1350mm,1050mm,750mm
02.the material is made of cold roll steel so assuring that it can support 3--4ton per pole.
03the smart locket connection between vertical and keel is simple and firm .
04.the outside use ectrophoresis technology so as to prevent corrosion.
05.using time --savely to say --300times more efficient then the wood
PS: the most popular style are the three types of different length,they're in 2.55m, 1.95m and 1.35m