API swing check valve

    API swing check valve

    阀 体WCBWC1WC6WC9CF8CF8M
    阀 盖2515CrMoA12Cr1MoVA12Cr1MoVACF8CF8M
    阀 瓣WCBWC1WC6WC9CF8CF8M
    摇 杆WCBWC125Cr2MoVWC9CF8CF8M
    阀 座2515CrMoA12Cr1MoVA12Cr1MoVA304304
    销 轴1Cr17Ni220Cr1Mo1V1A304304

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