Our company is specialized in processing and selling tubing change-over joint, casing change-over joint, drill pipe change-over joint, etc. 

PIN * PIN (double male thread), 

PIN *BOX (one end male thread and one end female thread), 

BOX *BOX (double female thread).

Different thread conversion,EUE* NUE,EUE*IF,NUE*IF,EUE*NPT,NUE*NPT, etc.Same diameter reducer, same diameter reducer, variety of forms, usually used in connection of both ends of different diameters, different thread products.

Steel grade :J55, K55, N80, l80-1, l80-3cr, l80-9cr, l80-13cr, P110, 13cr-110, etc.

Oil Tubing Specifications: 1.315 "/ 1.9" / 2/2-7/8-3/8 "/" 3-1/2 "/ / 4-1/2" 4"

Casing Pipe Specifications: 4-1/2 ", 5 ", 1/2 ", 5-6-5/8 ", 7 ", 7-5/8 ", 8-5/8 ", 9 5/8 "-, 10-3/4", 13-3/8 "(114.3 -) 339.7 MmMachining 

Length 0.5 ft --20 ft /0.15 m -- 6 m.

Our Services/Warranty

As a professional manufacturer, we provide follow services:

1.. Lower price

2.  ONE year warranty and life time maintenance

3.  In time delivery.

4.  High Quality assurance.. 

Contact:BonneXu

Email:BonneXu@dlpoctg.com

Skype:BonnieXu22

Linkedin:BonnieXu

Tel:+86-13602055205

WeChat:13602055205