14.18 SUC吸入(口)Suction 14.19 DIS排出(口)Discharge 14.20 SO蒸气吹扫(口)Steam out
14.21 NPT美国标准锥管螺纹National standard taperpipe thread 14.22 NPS美国标准直管螺纹National standard straight pipe thread
14.23 DR排液Drain 14.24 VT放气Vent
14.25 RTG(压力)等级Rating 14.26 CL等级Class
14.18 SUC吸入(口)Suction 14.19 DIS排出(口)Discharge 14.20 SO蒸气吹扫(口)Steam out
14.21 NPT美国标准锥管螺纹National standard taperpipe thread 14.22 NPS美国标准直管螺纹National standard straight pipe thread
14.23 DR排液Drain 14.24 VT放气Vent
14.25 RTG(压力)等级Rating 14.26 CL等级Class
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