- Supply TypeManufacturer, Exporter, Supplier
- Preferred Buyer Location All over the world
steel material: q345b=s355jr,sm490,astm a572; q235b=s235jr,ss400,astm a36 carbon structural steel: q195, q215, q235, q255, q275, etc. high-strength low-alloy structural steel quality carbon structural steel and alloy structural steel special purpose steel standard:iso9001:2000 certificate: aws welder passport from usa.