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Sam's Laser FAQ Back to Sam's Laser FAQ Table of Contents. Home-Built Diode Pumped Solid State (DPSS) Laser Sub-Table of Contents. Basic Home-Built DPSS Laser Information. Introduction to Home-Built DPSS Laser Chapter 82 The metal smelting and refining industry processes metal ores and scrap metal to obtain pure metals. The metal working industries process metals in order to manufacture machine components, machinery, instruments and tools which are needed by other industries as well as by the other different sectors of the economy. Numerical NAICS Code List 2017 | Class Codes This page contains a numerical NAICS code list 2017. Users can view and lookup an index of 2017 NAICS codes in numerical order.    Read More

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