4 Inch Copper Plating VAM Thread Tubing Couling

4 Inch Copper Plating VAM Thread Tubing Couling

Coupling are important accessories for tubing and casing pipes. We are committed to OCTG for many years,each coupling passes phosphating, Magnetic P.I,Threading Check,and the quality of each coupling is guaranteed.
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Product Details

Product Introduction

Professional production and sales: standard tubing coupling / casing coupling, line pipe coupling. Can process all kinds of extended couplings, special threaded couplings, joints, tubing change joints / adapters, oil casing plugs, thread protectors (wire caps). According to customer requirements, we can process all kinds of couplings, buckles, wire plugs, pipe fittings and other products. Steel grade: J/K55, N80-1/Q, L80-1, L80-13Cr, P110, etc. The raw materials are all selected from domestic large-scale. Standard coupling material for steel mills.

Tubing specifications:1.315"---4-1/2"

Thread type: EUE (thickened), NUE (not thickened).

 Casing coupling:4-1/2"——20"

Thread type: SC (short round buckle), LTC (long round buckle), BTC (biased buckle).

Product Specification
tubing coupling size1.315"-4-1/2"
connectionEUE,NUE,  premium connectiong(VAM TOP,NEW VAM,PH6,CS Equivalent)
surfacePhosphating,Blackening,Zinating,Nitriding,Sandblasting,Copper plating and so on
wooden pallets,carton cases,wooden cases
Prodection Details
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Thread processing machine

coupling (98)

L80-13cr copper coupling

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bevel performance coupling

Prodect Qualification

ISO 9000

ISO 9001




Business license

Poduction Process


Q:Are you trading company or manufacturer 

A: We are factory.

Q: How long is your delivery time?

A: According to the quantity of per size.Generally it is with 7 days if the goods are in stock,or it is 15-20 days if the goods are not in stock.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: 30% T/T in advance ,balance before shippment.

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