BS 4504 SLIP ON PLATE FLANGE YAKWITSA NKHOPE / FLAT FACE PN6, PN10, PN16, PN25, PN40, PN64 British Standard BS 4504 : Gawo 3.1 : 1989 - Zozungulira Zozungulira Zopangira Mapaipi, Ma Valves Opangidwa ndi Mapangidwe Opangira Mapaipi, PN Mapangidwe Opangira Mapaipi (PN Special Designs.Izi zimakwirira ma flanges m'magawo ocheperako a PN 2.5 mpaka ...
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