Jiangsu Changbao Taobang Petroleum Pipe Co Ltd
Jiangsu Changbao Taobang Petroluem Pipe Co.,Ltd is specializing in API 5CT Coupling manufacturing more than 15 years.
Capacity: 3 million pieces per year.
Size: Tubing coupling from 1.9"to 4-1/2", Casing coupling from 4-1/2"to 13-3/8".
Grade: J55, K55,N80-1, N80-Q, L80, C95, P110, 9Cr, 13Cr.