API标准钻杆

标准

ASTM A519   CA&S 0028 REV.12CA&S 0011 REV. 12CA&S 0036 REV. 5

GLOBAL SPECIAL STEELS GSS-101 REV.Draft1

GLOBAL SPECIAL STEELS GA-102 REV.Draft1

BMS P106 REV.KBMSP110REV.L  ES-MA-18-*