Why are Grades R and RM for acetylene only? For many years the prevalent fuel gas in the industry was acetylene. Acetylene has little or no adverse effects onrubber. Therefore, no requirements for fuel gas compatibility were initially specified in the RMA/CGA IP-7 standard.Due to enhanced performanc...

I have a retail store in Texas and have sold a dozen or so ESAB 160 heliarc. We have had issues with the boards. Italian built and haven't been great. It is a slow warranty repair and expensive out of warranty. If size matters... I like what Thermal Arc has to offer?! Still kinda pricey, but more ad...