| Product | Galvanized Square and Rectangular Steel Pipe with Holes | 
| Material | Carbon Steel | 
| Grade | Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Grade B Grade C | 
| Standard | DIN 2440, ISO 65, EN10219 GB/T 6728 JIS 3444 /3466 ASTM A53, A500, A36 | 
| Surface | Zinc coating 200-500g/m2 (30-70um) | 
| Ends | Plain ends | 
| Specification | OD: 20*20-500*500mm ; 20*40-300*500mm Thickness: 1.0-30.0mm Length: 2-12m | 
Application:
Construction / building materials steel pipe
Structure pipe
Fence post steel pipe
Solar mounting components
Handrail pipe




Strict Quality Control:
1) During and after production, 4 QC staffs with more than 5 years experience inspect products in random.
2) National accredited laboratory with CNAS certificates
3) Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
4) Approved by Malaysia, Indonesia, Singapore, Philippines, Australia, Peru and UK. We own UL /FM, ISO9001/18001, FPC certificates









