求翻译：Plasma Etch, Inc. in Carson City, Nevada, USA has become aware that counterfeit plasma machines are still being marketed and sold under the name Plasma Etch, Inc. They are being marketed in by Kilo-Walker Science and Tech Co. Ltd in Beijing, China, Taiwan, Malaysia and various locations throughout the Pacific Rim. "These machines are damaging the reputation of Plasma Etch, Inc. USA and as far as our investigations can tell, fraudulent activity has been going on for quite some time," states Marty Dues, Corporate Sales and Marketing Manager, Plasma Etch, Inc. USA. "We want our current and potential clients to be assured that these machines are in no way authorized for manufacture or associated with Plasma Etch, Inc USA and the quality products that we manufacture and support." These machines are of poor quality, and have posed significant safety hazards including but not limited to fire hazards.是什么意思？

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