Standard: GB/T 8163-1999Application: For conveying of petroleum, gas and other fluids.Covering two pipe types: hot rolled & cold drawn Products can be also supplied according to the standard of: ASTM A53-98, ASTM A106, JIS G3452-1998, JIS G3454-1998, JIS G3458, DIN 1629-1984, and ISO 559
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