1. Commodity:

square ventilation pipe

Rectangular pipe/ Square pipe/Round pipe/ Special section pipe

2. Side Length:

10mm*10mm-1200mm*1200mm

3. Thickness:

0.6mm-60mm

4. Length:

4-12meter/pc

5. Producing Standard:

ASTM A500,JG 178-2005,JIS G3466,EN10210
GB/T6728-2002,GB/T6725-2002, GBT3094-2000,or according to technical protocol

6. Main Material:

ASTM A53,ASTM A106 ASTM A210,ASTM A283,ST33, ST37-2,ST52, DIN1626,DIN1629,STPY41,G3452,G3457, S235,S355, Q195-Q235,Q345,20#, alloy steel etc

7. Technology:

Seamless; Or Welded

8. Surface treatment:

Paint oil; Varnish; Hot galvanized; Cold galvanized;
Galvanize the raw strip steel; Or according to customer's requirements.

9. Package:

Tied with steel trips, then wrapped by plastic material.
Or according to customer's requirements.

10. Usage:

Widely used in mechanical manufacture, construction field, metallurgy industry, farm vehicles, agriculture greenhouse, automotive industry, railway, highway guardrail, container frame, furniture, decoration, steel structure etc

11. Certificate:

ISO9001-2000, ISO14000, ISO18000

12. Third party inspection:

Welcome you to send a third party inspecting company (BV, SGS etc) to check the quality of our final products.