CROSSOVER TUBING:AISI 4145H-120KSI 4-1/2IN IF (NC 50) BOX 6-5/8IN GPDS 55 PIN ALLOY STL BP GIS 02-10
CROSSOVER TUBING:AISI 4145H-120KSI 4-1/2IN IF (NC 50) BOX 6-5/8IN GPDS 55 PIN ALLOY STL BP GIS 02-103 (REVISION 1)-SPECIFICATION FOR DRILL STRING SUBS API SPEC 7-1 (ISO 10424-1)
CROSSOVER TUBING:AISI 4145H-120KSI 4-1/2IN IF (NC 50) BOX 6-5/8IN GPDS 55 PIN ALLOY STL BP GIS 02-103 (REVISION 1)-SPECIFICATION FOR DRILL STRING SUBS API SPEC 7-1 (ISO 10424-1)
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