DONGYING HAIXIN PETROLEUM EQUIPMENT CO.LTD

good smooth finish, favorable flexibility, strong resistance to impact, outstanding adhesion and wonderful corrosion resistance.

1.Standard: API 5CT 2.Specifcation: 4 1/2"- 20" 3.OD: 114.30 - 508 mm 4.WT: 5.21 -13.06 mm 1.Standard: API 5CT 2.Specifcation: 4 1/2&

Materials: Drill collars are manufactured from AISI4145H modified steel and are supplied in the as rolled surface finish condition. Alternative surfa

Comprehensive properties: good smooth finish, favorable flexibility, strong resistance to impact, outstanding adhesion and wonderful corrosion resista

Intergal heavy weight drill pipe is made from AISI 4142H-4145Halloy steel, the manufacturing follows API SPEC 7-1 and SY/T5156-2006 standard.

oil tubing 1.standard: API 5CT 2.Steel grade:J55, K55, N80, L80, p110 3.technology:seamless pipe 4.OD:114.30-508.00mm

The OD of the drill pipe is from 2 3/8" to 5 1/2" and steel grade from E75 to S135. 2 3/8", 2 7/8" 3 1/2", 4", 4 1/2", 5&

The HISIN LZ series down-hole motor is a kind of advanced drilling tools to convert the hydraulic energy into mechanical energy through a linkage of a