Manufacture Direct Sales API Buttress-thread Casing Coupling
Size :All kinds of sizes are available
Surface Treatment : using internal and external surface phosphating
treatment and magnetic particle inspection ,and according to API
5ct standard tags ,then also can according to customer's
requirements with protective coating (paint )
OEM :Our Engineering Team and Drawing Dept. Could design and make
according your special requirements .
Export :90% products have been exported to American and European
markets for many yeas.
Quality :Our products are adopted by top famous companies and
quality is reliable .
Your reliable source of tubing and casing coupling
1.Perfect surface finish, smoothness without burs and impurities.
2.High precision according to standard
3.Competitive price and reliable quality
4.Samples in small quantity can be free for you .
Note :Special dimension and other standard tubing and casing
coupling are available under customers’ requirements.