One-Stop Steel Pipe Manufacturer and Supplier Since 2001
We are professionally engaged in steel production sales, steel processing, and greenhouse engineering. With 18 years of experience, we operate 13 production lines for various steel pipes, 10 processing lines, and 2 environmental hot-dipped galvanizing lines. Our annual production capacity includes 450,000 tons of pre-galvanized steel pipe and 200,000 tons of hot-dipped galvanized steel pipe.
As a leading exporter, we provide hollow sections, galvanized steel pipes, scaffolding, and steel coils worldwide. With over 15 years of export experience and adherence to ISO, ASTM, and EN standards, we maintain high competitiveness. We invest heavily in large indoor distribution centers to provide efficient storage, transportation, and 24-hour delivery services.
Pre-Galvanized Round Pipe
Galvanized pipes are welded steel pipes coated with a layer of zinc, offering enhanced corrosion resistance and extended service life. These pipes are ideal for applications in construction, machinery, and agricultural industries. Known for their durability, they are also commonly used for fencing, scaffolding, and greenhouse structures.
Compliance Standards: ASTM A500 (American), EN 10219 (European), JIS 3466/JIS 3444 (Japanese).
| Standard/Grade |
Nominal Size |
Thickness (mm) |
Thickness Tolerance |
Bend Tolerance |
Length (mm) |
| Q195 / Q215 / Q235 |
20 - 32 |
0.6 - 2.3 |
±0.05mm |
≤2mm/m |
4000-13000 |
| 38 - 48.3 |
0.7 - 2.3 |
±0.05mm |
≤2mm/m |
4000-13000 |
| 59 - 112 |
0.8 - 2.3 |
±0.05mm |
≤2mm/m |
5000-10000 |
Q
Frequently Asked Questions
Are you a manufacturer?
Yes, we are an OEM and ODM manufacturer with over 20 years of experience in producing and exporting steel pipes, galvanized pipes, and hollow sections.
Do you provide free samples?
Yes, we can provide a free sample of 20cm length. Customers are only responsible for the basic shipping cost to feel the product quality.
How do you ensure quality control?
We have our own testing center where we perform daily chemical composition analysis, mechanical properties testing, and cosmetic inspections.
Can I inspect the factory remotely?
Absolutely. We support factory visits in person and also provide ZOOM video sessions for online factory inspections.
What is the typical delivery time?
Regular-size products can be delivered in as little as 3 business days. OEM orders typically take 20-30 days.
What happens if products are damaged after sale?
We guarantee quality within 20 days of receipt. For issues like deformation or rust occurring in transit, we discuss compensation on a case-by-case basis.