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ASTM A193/A193M-2019《 高温或高压及其它特定用途设备用合金钢或不锈钢螺栓材料》系列
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ASTM A194/A194M-2018《高温或高压或高温高压螺母标准规范》系列
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ASTM A320/A320M-2018《 低温用合金钢和不锈钢栓接材料标准规范 》系列
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ASME SA-193/SA-193M;ASME SA-194/SA-194M;ASME SA-320/SA-320M
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B7/B7M外六角螺栓
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B7/B7M内六角螺栓
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B7/B7M 活节螺栓(鱼眼螺栓)
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B7/B7M法兰面螺栓
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