thép hộp chữ nhật 50 x 100x1.6

Thép hộp chữ nhật 50 x 100x1.2, 50x100x1.3 50x100x1.4 50x100x1.6 50x100x1.8 50x100x2.0, 50x100x2.3, 50x100x2.5, 50x100x2.8, 50x100x3.0, 50x100x3.2, 50x100x3.5, 50x100x3.8, 50x100x4.0, 50x100x4.2, 50x100x4.5, 50x100x5.0, 50x100x6.0, 50x100x8.0 Ngoài ra còn cung cấp các loại thép ống, ống...