NACE Sour Service Forged Flanges | MR0175 ISO 15156 H₂S Resistant Flanges Manufacturer
GS Pipeline manufactures NACE sour service forged flanges compliant with NACE MR0175 / ISO 15156 for H₂S-containing oil and gas environments. ASME B16.5, API 6A forged flanges with controlled hardness, low carbon chemistry, SSC and HIC testing available.
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