First, the steel industry boom straight up In December 1st, China joint steel logistics Specialized Committee released the steel industry PMI index shows that in November the steel industry PMI index..

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[introduction] piping and instrument diagram is an important part of chemical process design. In the design process, should be based on the requirements of the process flow chart, in detail the system..

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First, a summary of packing tower (a) slot liquid distributor (gravity type liquid distributor) 1, single slot liquid distributor Single slot liquid distributor or through the distributor, the struc..

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First, the failure to determine the five trick Look: eye. Look at the local instrument parameters, the appearance of the equipment, accessories, lubricants, etc.. Listen: ear. Listen to the sound of ..

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