7==>DESC SEAT RING(JIS 10K-200A)/D/N:W3-F6390/TYPE NS JIS 10K-200A 250A/GATE VALVE WITH YOKE BAR (PCS)

7==>DISC SEAT RING(JIS 10K-250A)/D/N:W3-F6390/TYPE NS JIS 10K-200A 250A/GATE VALVE WITH YOKE BAR (PCS)