低温作业用合金钢螺栓连接材料用规范.ASTM A320/A320M-99

ASME SEC II A SA-564/SA-564M-2002 现行

ASME SEC II A SA-20/SA-20M-2002 现行

ASME SEC II A SA-515/SA-515M-2002 现行

ASME SEC II A SA-353/SA-353M-2002 现行

ASME SEC II A SA-737/SA-737M-2002 现行

ASME SEC II A SA-36/SA-36M-2002 现行

ASME SEC II A SA-216/SA-216M-2002 现行

ASME SEC II A SA-508/SA-508M-2002 现行

ASME SEC II A SA-336/SA-336M-2002 现行

ASME SEC II A SA-335/SA-335M-2002 现行