The National Wire Heald Works Pvt. Ltd manufactures `O` Type Flat Steel Healds. The National Wire Heald Works Pvt. Ltd also manufactures various types of Healds and Drop Wires. The `O` Type Flat Steel Healds, under the brand name `Keytex`, are suitable for Air Jet and Water Jet Weaving Machines. The `O` Type Flat Steel Healds are used with Heald Bar size of 9.0X1.5 mm. The `O` Type Flat Steel Healds are available in the following two types such as Simplex and Duplex. The distance between end loops of Simplex and Duplex is 280 / 302 / 330 mm.