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五组多用阀/内螺纹针型阀SS-M2F8型

SS-M2F8 五阀组 设计制造标准Design Manafacfure According: ASME B16.34-2004 GB/T 12224-2005 JB/T 8473-1996 ... VALVE BODY MATERIAL 1 20Mpa 6 1/2NPT 35# ...

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