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square file and rectangle file pipe

Product Description

square hollow steel pipes outdiameter: 10-1000mm thickness:0.5-25mm length:5.8m or 6m.Max:16meter Anti-corrosion and high-temperature resistant with hot dipped galvanizied coating or painting. All the production process are made under the ISO9001:2000 strictly  With BV certificate,PC certificate,ISO9001-2000,SGS inspection.

  square hollow steel pipes


Dimension: 10mm*10mm-1000mm*1000mm


Dimension: 10mm*20mm-350mm*400mm

Wall thickness



1m-14m ,by customer’s requiremnts

Zinc coating

Pre-galvanized steel square tube: 60g/m2-150g/m2;

Galvanized steel square tube:200g/m2-400g/m2;


ASTMA53,BS1387-1985,GB/T3091-2001,GB/T13793-92, GB/T6728-2002




ERW Welded square tube


1.Big OD:in bulk

2.Small OD:packed by steel strips

3.woven cloth with 7 slats

4.according to the requirements of customers


Mechanical&manufacture,Steel strcuture,

Ship building,Bridging,Automobile chassis

Main market

Middle East,Africa, Asia and some Uropean country and America ,Australia

Country of origin



20000 Metric Tons pet Month


1.  Payment terms : T/T ,L/C

2.  Terms of trade : FOB, CFR, CIF, EXW

3.  Minimum order : 10 tons

4.  Lead time : on or before 20 days

Any other questions, pls feel free to contact me. Your kindly mail will be treated seriously and reply within one work day. 


Thank you, and waiting for your early RFQ!


Contact us if you need more details on Square File. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Rectangle File、Square Pipe. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Seamless pipe > Other Steel Pipe

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