API 4-1/2" Coupling

Specifications

API 4-1/2" coupling:
1,API 5 CT
2,O.D:4-1/2"
3,Grade:K55
4,Thread:BTC

API 4-1/2"  coupling 

Feature:

1,We always do business on the basis of  equality  and mutual benefit .

2,The spec of our goods almost cover all of the sizes.

3,The quality of our goods is  proved to be very good. We can also arrange the package ,the transport and some other things as the requirment of our customer.

 

specification:

1,Outer diameter: 4-1/2"

2,Grade:K55

3,Type of thread :BTC

4,Standard : API 5CT, API 5B

 

Process Flow Chat:

The raw materials inspection--the blank cutting ---processing --stenciling--Inspection--thread processing--Nondestructive inspection --inspection ---phosphorizing process--coating ---Cheing & storing ---packing