China Plug Valve Suppliers, Manufacturers, Factory - Customized Drive Shaft Gear Wholesale

NC50 Heavy Weighted Drill Pipe, Size 5Inch, Thread End Type, Material G105, API Standard

G105 Heavy Weighted Drill Pipe, Size 5 1/2Inch, Thread End Type, Material G105, 5 1/2 FH THREAD END, API Standard

S135 Heavy Drill Pipe, Thread End Type NC38,API Spec 7 Standard Weighted Drill Pipe, Size 3 1/2Inch, Material G105

NC46 Heavy Weighted Drill Pipe, Size 4 1/2Inch, Thread End Type NC46, Material AISI 4145H, API Standard

Thread End Type NC38,API Spec 7 Standard Weighted Drill Pipe, Size 3 1/2Inch, Material G105

With Spiral Groove Heavy Drill Pipe, NC46 Heavy Weighted Drill Pipe, Size 4 1/2Inch, Thread End Type NC46, Material AISI 4145H, API Standard