Description: Kellys are manufactured with one of two drive configurations, square or hexagonal. Square kellys are furnished as forged or machined in the drive section. Hexagonal or fully machined square kellys are machined from full length quenched and tempered round bars. ...
Description: Drilling steel wire rope is made of steel wire around a central steel wire, and then twists by the rope stand around cable core. Most of drilling line are steel cable core, which is divided into the left-handed and right handed, Material grade is IPS, EIPS, and ...
API 5L GR.B Carbon Spiral Welded SSAW Steel Pipe Spiral welded pipe: It is made by rolling a low carbon carbon structural steel or a low alloy structural steel strip into a tube blank at a certain angle of a helix (called a forming angle), and then welding the pipe seam, which ...