The details of various John Crane high-performance seals designed specifically for the oil and gas industry are presented in a new brochure. The ISO 21049 standard, cross referred to as American Petroleum Institute (API) 682 third edition, gives recommended seal types, arrangements and flush plans for typical refinery applications. The new brochure outlines the most appropriate John Crane seals to meet these recommendations.
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Radio wave weapon knocks out drone swarms
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