Tenaris, 's a company that's a global manufacturer and supplier of seamless and welded steel pipe products and provider of pipe handling, stocking and distribution services to the oil and gas, energy and mechanical industries. It's also a leading regional supplier of welded steel pipes for gas pipelines in South America. With manufacturing facilities in Argentina, Brazil, Canada, China, Colombia, Italy, Japan, Mexico, Romania, USA and Venezuela and a network of customer service centers in over 2… (More on Tenaris)