Made from high-strength alloy and processed specially with heating treatment According : API 16A

Model	Strength  testing      pressure	Dimensions (mm)	Weight (kg )
FS18-21	42MPa	582*380*494	180
FS18-35	52MPa	675*395*550	270
FS18-70	105MPa	700*480*550	410
FS23-35	52MPa	800*482*660	385
FS23-70	105MPa	820*552*725	650
FS28-35	52MPa	950*585*650	520
FS28-70	105MPa	950*655*700	970
FS28-105	157MPa	1130*812*900	2360
FS35-35	52MPa	950*672*650	778
FS35-70	105MPa	10500*786*800	1500

Drilling spool