Specifications:1) Design and manufacture standards: ANSI B16.34, API6D, API 599 and API 6A2) Face to face: ANSI B16.10, and API 6A3) End flange: ANSI B16.5, ANSI B16.25, and API 6A5) Inspection standa ...
Shanghai Shuanggao Valve Group Co., Ltd.
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