api5000 Explore hh-quality Weld Neck Flanges from a reputable manufacturer. Our ASTM A105N flange, with a size of 2-116 inches, adheres to API 6A and TYPE API 6B standards. It boasts a sturdy. api 6a - type - 6b 34.5 mpa (5000 psi) gbt 22513-2013
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