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By certification 
J55 casing pipe specifications
Standard: API Spec 5CT
Product scope: 4-1/2"-13-3/8"
Length: R1, R2, R3
Thread: LTC, BTC, STC
Steel grade: J55
End protection: Couplings, thread protector made from rubber and steel
Packing: black painting to avoid corrossion
Production capacity: 100,000 tons per year
Market: Mid East, Europe, Africa, Southeast Asia
Contact person: Ms. Catherine Li
Tel: +86-635-2946188
Fax: +86-635-2935599
Standard: API Spec 5CT
Product scope: 4-1/2"-13-3/8"
Length: R1, R2, R3
Thread: LTC, BTC, STC
Steel grade: J55
End protection: Couplings, thread protector made from rubber and steel
Packing: black painting to avoid corrossion
Production capacity: 100,000 tons per year
Market: Mid East, Europe, Africa, Southeast Asia
Contact person: Ms. Catherine Li
Tel: +86-635-2946188
Fax: +86-635-2935599
