“Koch Metal Works has dedicated an entire 11,000 sq. ft. shop to CWB certified welding. Koch is certified to 47.1 and 47.2 (steel, stainless and aluminum). The weld shop has 22 welding stations and each station is equipped with a Torit T-2000 fume extractor. Our skilled and knowledgeable welders are all qualified by CWB and are capable of welding your most demanding and complex parts.”Koch uses Lincoln Power Wave S-350 Advanced Process MIG welders with the STT advanced pulse modules. This process produces a superior weld with much less spatter than other welding machine.