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See Chinese contents: Q/BQB 265-2020 Q/BQB 265-2020: Heat-resistant casing
This Standard specifies the delivery technical conditions for the heat-resistant casing manufactured by Baoshan Iron and Steel Co., Ltd. This Standard is applicable to seamless casing (hereinafter referred to as casing) used of heavy oil exploitation in the petroleum and natural gas industry and other high-temperature environments.
