Steel box tube:

Size: Square box / Rectangular box: Black / Galvanized

Origin: Vietnam/ Korea / China / Taiwan/ Japan...

Standard: ASTM / JIS / EN / KS / DIN....

Grade steel: Standard ASTM / JIS/ EN / KS: SS400B / SPHC/ Q235B/ Q345B/ SM490....

Description (mm)	Thickness (mm)
	3.2	4.0	4.5	5.0	6.0	8.0	9.0	10.0	12.0
Square box	x	x	x	x	x	N/A	N/A	N/A	N/A
100X100	x	x	x	x	x	N/A	N/A	N/A	N/A
125X125	N/A	N/A	x	x	x	x	N/A	N/A	N/A
150X150	N/A	N/A	x	x	x	x	x	x	N/A
175X175	N/A	N/A	x	x	x	x	x	x	N/A
200X200	N/A	N/A	x	x	x	x	x	x	N/A
250X250	N/A	N/A	x	x	x	x	x	x	x
300X300	N/A	N/A	x	x	x	x	x	x	x
Rectangular box
125X75	x	x	x	x	x	N/A	N/A	N/A	N/A
150X75	x	x	x	x	x	N/A	N/A	N/A	N/A
150X100	x	x	x	x	x	N/A	N/A	N/A	N/A
175X125	N/A	x	x	x	x	x	x	N/A	N/A
200X100	N/A	x	x	x	x	x	x	N/A	N/A
250X150	N/A	x	x	x	x	x	x	N/A	N/A
300X200	N/A	N/A	N/A	N/A	x	x	x	x	x
350X150	N/A	N/A	N/A	N/A	x	x	x	x	x
350X250	N/A	N/A	N/A	N/A	x	x	x	x	x
400X200	N/A	N/A	N/A	N/A	x	x	x	x	x

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