| Carbon steel: ASTM/ASME SA234 WPB, WPC, Alloy steel: ASTM/ASME SA234 WP5, WP9, WP11, WP12, WP22, WP91 Temperture Steel: ASTM/ASME A420 WPL6 WPHY P42?P46?P52?P56?P60?P65?P70 Used for: oil filed, offshore, gas pipeline, water system, electrical factory, building construction, ship building, chemical, etc. |
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