In 1978 he got the chance to build a sand and gravel dredge. He founded, Assemblers Inc (No period after Inc), to concentrate on the design and construction of aggregate processing equipment including crushers, screens and conveyors. The 86-year-old founder of Twinkle earned his degree in general science from the University of Iowa in 1961 and began his career in steel fabrication. Willard Salemink is a walking encyclopedia of dredging technology. The complete paper is presented below.īackground for the Rock Products article. The article, which appeared in the October 2009 issue of that magazine, used only a small portion of the information I provided. Recently I was asked to provide background material for an article in Rock Products Magazine. Slightly useful stuff to know about dredging
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