For square tubes

SFIQ-SFIPF001
20x20 - 60x60

SFIQ-SFIPF006
40x40 - 60x60

SFIQ-SFIPF014
50x50 - 60x60

SFIQ-SFIPF011
30x30 - 40x40

XCQH-HF001
25x25 - 30x30

XQH-HF007
51x51 - 51x51

SFIQ-002
53x53 - 53x53