Guizhou Kailin equipping Chemical Engineering Company and Guizhou Province Special Equipment Safety Testing Authority last week signed a check valve agreement. The Phosphorus Chemical Equipment Engineering Company obtained the qualification certificate for safety valve inspection and became the fourth company in Guizhou Province that can inspect safety valves online and carry out annual inspections of safety valves. In the future, the open-phosphorus phosphorus-rich coal chemical industry zone safety valve will be tested online by the Phosphorus Chemicals Equipment Engineering Company, and the chemical equipment manufacturing industry for phosphoric acid has taken a solid step forward.
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