斯威沃管道工程有限公司生產具備ABD/DNV船級社PDA認可的3D外加厚彎頭，包括3D 45/90彎頭。
　　設計制造均滿足以下國際規范：
　　MSS‐SP75: Speci?cations for High test Wrought Butt Weld Fittings.
　　ANSI B31.3: Chemical Plant and Petroleum Re?nery Piping.
　　ANSI 16.9: Factory made Wrought Steel Butt Weld Fittings.
　　NACE MR‐01‐75: Sulphide Stress Cracking Resistant metallic Materials for Oil Field Equipment. ASME VIII Division 1 section 13.10Boiler and Pressure Vessel Code.
　　API 6A: Speci?cations for Wellhead and Christmas Tree Equipment