API 5CT Tubing and Casing coupling,casing coupling, Tubing coupling

Specifications
Casing and tubing couplings is used to connecting the casing and tubing
Std Ref.: API 5CT 5B ISO9001, 2008 
Grade: J55,K55, N80-1,N80-Q,L80,C90,P110 
Size: tubing 1.9"to4-1/2", casing 4-1/2"to13-3/8"
Product Name: API 5CT and 5B BTC STC LTC Casing couplings for oil field
Std Ref.:API 5CT and 5B ISO9001,2008
1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110
2.We also supply permium thread products by customer's request
3.Size: tubing coupling from 1.9" to 4-1/2",Casing coupling fro4-1/2"to 13-3/8"
4.Type: STC,LC,BTC(casing coupling).
5.Surface treatment: Whole phosphating, or inside phosphating and outside coating
6.Packing: By carton, wooden case, wooden pallet, or by  requirements of customers
Otherwise, Our company manufactures and sells casing and tubing couplings,pup joints, tool joints, adapter pup-joints, adapter couplings, stabilizers, anchors of oil pumps and revolving sand gravitated device of well, etc. We always do business based on the principle of equality and mutual benefit, we provide the high quality and competitive price products.
If you are interested in anyone of them please contact us as soon as possible.