Experiments with metal shafts went by means of various phases. In 1924 the Union Hardware Organization of Torrington, Connecticut, U.S., drew a seamless shaft of superior-carbon steel that might be warmth-treated and tempered. It had been permitted from the R&A in 1929 and considerably changed hickory during the early 1930s. https://anniet630ipw6.wikistatement.com/user