Material:zinc-alloyUsage:can connect two or three sticks of profile
With high quality and resonable price

square 3-way corner bracket

Material:zinc-alloy,iron,steel,stainless steel
Usage: It can connect two or three sticks of profile.It is perfect adding  the frame cap.
With high quality and resonable price

reinforcement point and sunk hole

electrical galvanized,yellow zinc plated

Profile                                      A     B         C         D       E

20Series   AOD-5S  AOD-5H    18  19        19       5.1   10.2

30Series   AOD-6S  AOD-6H    27   28.5     28.5   8.2    15