2021-07-11Animal husbandry
Animal husbandry is a production department that uses the physiological functions of domesticated animals such as livestock a
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13775106206Animal husbandry is a production department that uses the physiological functions of domesticated animals such as livestock a
View detailsBuilding thermal insulation is a measure to reduce the indoor heat emission of buildings to the outside. It plays an importan
View detailsThe hardware facilities of cold chain logistics are perfect, foreign refrigeration equipment is relatively advanced, and all
View details"The thermal insulation material used for LNG ship is the thermal insulation material used under the condition of - 162
View detailsAt present, the plastic parts used in cars are mainly PP (polypropylene), PVC (polyvinyl chloride), PU and PA (nylon). The de
View detailsPolyurethane foam is widely used in various sectors of the national economy, especially in furniture, bedding, transportation
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