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WN RTJ FLANGE
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WN RTJ FLANGE
B16.47, A/B, API 605,MSS SP44,WNRF FLANGE,WN RTJ FLANGE,WELDING NECK FLANGE,ASTM A105
B16.47 WNRF FLANGE,WN RTJ FLANGE,ASTM A105 WELDING NECK FLANGE
High Pressure Flange, WN RTJ Flange, 900# 1500# 2500# WN RTJ Flange
