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API SPEC 6AV1(2008) Wellhead Surface Safety Valves
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日期：2026-04-22
2 API SPECIFICATION 6AV1 3 Abbreviations and Definitions 3.1 ABBREVIATIONS The following abbreviations are used in this specification. ANSI: American National Standards Institute ASME SPPE: Refers to the program described in ASME SPPE I and 2....看更多
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