20IN Seamless pipe BTC API 5CT K55 We, Chengdu Derbo Steel Focus specialized in supplying OCTG Pipe (Tubing, Casing, Coupling, Joint, Drill Pipe)for more than 10 years. Tubing used in oil wells for oil recovery, gas production, water injection and acid fracturing.Casing Pipe API 5CT K55 for gas wellis one of our main products, the following are the details for you reference: 1.OCTG Pipe Technical Parameters Outside Diameter:21.3mm-711.2mm Wall Thickness: SCH30; STD; SCH4080160XXS. SCH- (2.0-25.4mm) Length: SRL; DRL; 5.8mm; 11.8mm FixedLength as per client`s requirements Standard: API 5CT Steel Material: N80 Application: Oil Gas Protection; boiler; water; electric power;steel structure, etc. Surface: Bare, Black Painting, Anti-CorrosionCoating (3LPE 3LPP FBE Etc.); Galvanized; Package: PlainBevel End With End Caps. WaterproofPacking, Bare Packing, in bundle, Nest Packing, Standard Export Packing Certificate: APIand ISO9001; 2000; PED. Inspection: SGS;BV.Intertek. Manufacturer Type: Hot Rolled, ColdDrawn Production Capacity: 20000TonMonth