Forged WELD NECK FLANGE (WN Flange) Manufacturer Changrun Supplies Forged WN Flanges,
5-1/8'', 2000 PSI.
Flange face: RF, FF, RTJ, TF, GF.
Material: ASTM A182 F310.
Certificates: CE, ISO, PED, TS, BV, CQC.
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