An incredible polypropylene project is underway in Madrid with Italsan supplying Nupi pipe for the Caleido Tower’s HVAC and plumbing system. We’re so excited that McElroy’s Acrobat™, Spider™ and DataLogger® 6 are their tools of choice on all 36 stories! The tower will be the fifth skyscraper to be constructed in La Castellana, the iconic business district in Madrid, and the city’s fifth tallest building. Some 4,000 workers are onsite every day and there are four contractors for all the fusion work.