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The global olefin industry will face periodic decline 2023-06-02 The global olefin industry … 2023-06-02 What is the difference between a gate valve and a globe valve? 2023-05-26 What is the difference betw… 2023-05-26 Hazards of abnormal pressure increase in gate valves 2023-05-19 Hazards of abnormal pressur… 2023-05-19 The 7th China (Zibo) General Machinery Exhibition 2023 2023-05-12 The 7th China (Zibo) Genera… 2023-05-12 The domestic steel market will present a grinding bottom 2023-05-06 The domestic steel market w… 2023-05-06 
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