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船用外螺纹重块式快关阀
GB1850-1984船用外螺纹重块式快关阀 Marine male threaded weight qick-clo...
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GB/T597-1983船用外螺纹青铜止回阀
GB/T597-1983船用外螺纹青铜止回阀 Marine bronze male thread check valve...
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船用外螺纹直角型青铜止回阀
GB/T597-1983船用外螺纹青铜止回阀 Marine bronze male thread check valve...
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GB/T599-1996船用外螺纹青铜泄放旋塞阀
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GB/T598-1980船用外螺纹青铜填料旋塞阀
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GB/T596-1983船用外螺纹青铜截止止回阀
GB/T596-1983船用外螺纹青铜截止止回阀 Marine bronze male thread stop ch...
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GB/1241-1983船用外螺纹锻钢截止止回阀
GB/1241-1983船用外螺纹锻钢截止止回阀 Marine forged steel male thread s...
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船用法兰铸铁单排吸入截止阀箱、截止止回阀箱
GB/T1854-1993船用法兰铸铁单排吸入截止阀箱 Marine flanged cast Iron sin...
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船用法兰铸钢直角式舷侧截止止回阀
GB/T1853-1994船用法兰铸钢舷侧截止止回阀 Marine flanged cast steel over...
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船用法兰铸钢直通型舷侧截止止回阀
GB/T1853-1994船用法兰铸钢舷侧截止止回阀 Marine flanged cast steel over...
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蜗轮船用铸铁双偏心蝶阀
GB/T3037-1994双偏心蝶阀 Double Eccentric butterfly valve 主要零部件材...
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液动船用青铜双偏心蝶阀
GB/T3037-1994双偏心蝶阀 Double Eccentric butterfly valve 主要零部件材...
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