Description
Bottom threaded
Produce all types of casing threads
The surface casing is connected by subs
Bottom welded
Weld casing head to surface casing on site
Suitable for all specifications of casing
Bottom slip
The surface casing clamp is tightened with locking bolt, and BT casing sealing ring is designed, which is connected firmly and sealed reliably.
Copyright ©Tianjin Grand Construction Machinery Technology Co., Ltd. All Rights Reserved. | Sitemap