矩形方管的规格尺寸如下：
国际标准矩形方管尺寸规格
400mm x 600mm x 6.0-16mm
300mm x 500mm x 6.0-16mm
200mm x 500mm x 6.0-16mm
200mm x 400mm x 6.0-16mm
200mm x 350mm x 6.0-16mm
200mm x 300mm x 6.0-14mm
150mm x 300mm x 5.0-14mm
150mm x 250mm x 5.0-14mm
350mm x 250mm x 5.0-14mm
150mm x 200mm x 3.0-12mm
方管及矩形管规格表
20mm x 20mm x 1.3-2.5mm
20mm x 30mm x 1.3-2.75mm
25mm x 25mm x 1.3-2.75mm
20mm x 40mm x 1.3-2.75mm
30mm x 30mm x 1.3-2.75mm
25mm x 40mm x 1.3-2.75mm
40mm x 40mm x 1.3-3.75mm
30mm x 50mm x 1.3-4.75mm
50mm x 50mm x 1.3-5.75mm
30mm x 60mm x 1.3-4.75mm
常用矩形管规格
500mm x 300mm x 8.0-12.0mm
450mm x 250mm x 6.0-12.0mm
400mm x 300mm x 6.0-12.0mm
400mm x 200mm x 6.0-12.0mm
350mm x 250mm x 6.0-12.0mm
350mm x 150mm x 6.0-12.0mm
300mm x 200mm x 6.0-12.0mm
300mm x 150mm x 6.0-12.0mm
300mm x 100mm x 4.0-10.0mm
这些规格涵盖了不同尺寸和厚度的矩形方管，适用于各种工业和建筑应用。在选择矩形方管时，可以根据具体需求从上述规格中选择合适的尺寸和厚度。