Specifications Materials: Q195,Q215,Q235 and others
Processing : cold rolled
Standard: GBT6728/ ASTM A500
ITEMS: BLACK ANNEAL
ERW Square steel tube MATERIAL: GB SATANDARD
GRADE:Q195, Q215,Q235. ALSO CAN SUPPLY BS1387,ASTM STANDARD . LENGTH : 5.8M,6.0M,11.8 We are specialized in exporting of high-frequency square tube,with a combination of rolling,setting,cold rolling and welding. Good quality strip steel and advanced equipment are used to produce high-frequency square tube of all sizes.Our annual output reaches up to 50000-80000 tons. The tubes are used for water supply,building support and machinery.The tubes meet the state standard,and are also available for custom making on request.
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