50x50x1.5mm square tubes for djibouti market Product name: ERW cold rolled black annealed steel pipe Out diameter: 10X10 MM ~ 100X100 MM Wall Thickness: 0.5mm-2.0mm Length: 1m-6m Standard: API 5L, API 5CT, ASTM A53, ASTM A252, ASTM A500, ASTM A795, BS1387, BS1139, EN10255, EN10219, EN10217, EN39, DIN2440/2444, ISO3183, ISO11960, JISG3444, JISG3454 etc. Quality grade: First class, prime, newly produced, secondary,
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