Features Outside Screw & Yoke Rising stem Bolted Bonnet & Welded Bonnet Valve could be supplied with ISO 5211 Flange for operator installation. MATERIAL : NACE MR-0175 Our Specialization Microne specialized in manufacturing valves in Duplex, Super Duplex, Inconel, Monel, UNS N08926, UNS N07718, UNS N08825, UNS N06625, Hastelloy, Aluminium Bronze,