We manufacture four steel grades (J55, K55,N80, L80 and P110), six sizes (1.9", 2-3/8", 2-7/8 ", 3-1/2", 4", 4-1/2") of tube.

 There are four steel grades (J55, K55,N80, L80 and P110), two categories (nonupset and external upset) and six sizes (1.9", 2-3/8", 2-7/8 ", 3-1/2", 4", and 4-1/2") of tubing.

With five production lines, 70 thousand tons of tubing and 1 million pieces of tubing couplings are available a year.

There are two series (prestressed anti-hydrogen one and high-vacuum one)and three sizes (41/2 ", 31/2 " and small caliber) of insulated tubing, and six items in total.

The annual production capacity of high-vacuum tubing is 200 thousand meters, and prestressed anti-hydrogen one is 100 thousand meters, the quality of which is in the leading level at home.

Two steel grades (J55 and N80)and three specifications of workover casings are available.

Internal advanced tubing upsetting production lines have been built at plant, on which tubing (J55 and N80) is upset.