21. The Sri Lankan system of crucible steel making was partially independent of the various Indian and Middle Eastern systems. 22. The successful process was crucible steel , which was made by melting wrought iron and blister steel in a crucible. 23. Evidences of the production of crucible steel have been found in Merv, Turkmenistan, a major city on the'Silk Road '. 24. Local company, Crucible Steel Company had just ordered a fleet of Sanford trucks for their steel operation at Sanderson Works. 25. In 1946 the Sanderson and Halcomb steelworks were renamed the Sanderson-Halcomb Works, later becoming the Syracuse Works of Crucible Steel . 26. Kaurich worked at the Vulcan Crucible Steel Co . in Aliquippa, 20 miles ( 32 kilometers ) northwest of Pittsburgh. 27. In the 1740s the crucible steel process was improved by Sheffield resident Benjamin Huntsman, allowing a much better production quality. 28. The screw propeller was twenty-four feet in diameter with a shaft that consisted of fifteen separate parts made of crucible steel . 29. The chateauesque house next door at 703 Walnut Avenue was built for Crucible Steel owner and president Horace Wilkinson in 1905. 30. The Neepsend Rolling Mills were established in 1876, just downstream from Neepsend Bridge, and produced crucible steel for the cutlery industry.
