问题描述：
英语翻译
STUD-BOLT A193 GR B7 W/A194 GR 2H NUTS,ITEM - STUD BOLT,THREADED FULL LENGTH,W/ TWO SEMI-FINISHED HEAVY HEXAGON NUTS EACH.,MATERIAL STUD - CHROME-MOLY ALLOY ASTM A193,GRADE 2H,LENGTH-EFFECTIVE THREAD LENGTH EXCLUDING ENDPOINTS PER ASME B16.5；；
PLUG SQUARE HEAD SCRD LOTEMP STL LF2,ITEM-FITTING SCREWED,TYPE-SQUARE HEAD PLUG,MATERIAL-FORGED CARBON STEEL FOR LOW TEMP SERV ASTM A350,GRADE LF2 CLASS 1；
PLUG SQUARE HEAD SCRD 方头堵头,螺纹,LOTEMP STL =low temperature steel 低温钢
STUD-BOLT A193 GR B7 W/A194 GR 2H NUTS,ITEM - STUD BOLT,THREADED FULL LENGTH,W/ TWO SEMI-FINISHED HEAVY HEXAGON NUTS EACH.,MATERIAL STUD - CHROME-MOLY ALLOY ASTM A193,GRADE 2H,LENGTH-EFFECTIVE THREAD LENGTH EXCLUDING ENDPOINTS PER ASME B16.5；；
PLUG SQUARE HEAD SCRD LOTEMP STL LF2,ITEM-FITTING SCREWED,TYPE-SQUARE HEAD PLUG,MATERIAL-FORGED CARBON STEEL FOR LOW TEMP SERV ASTM A350,GRADE LF2 CLASS 1；
PLUG SQUARE HEAD SCRD 方头堵头,螺纹,LOTEMP STL =low temperature steel 低温钢
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