EverGreen Is A Collection Of Specialized Downhole Seal Technology Patents And Research And Development, Production And Testing, Integration Of Operations And Service Enterprises. With A Number Of Retrievable Bridge Plug Of Domestic And International Patents, Internationally Leading Technology, Working Under Reliable And Durable, Professional Technical Support And Service Team Meet Downhole Operation In Oil, Production Test, Test Test Mining And Exploration And Development Measures In Compliance With The Requirements.
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