Hengshui Xinnuo Machinery Technology Co. Ltd. in North China is the automatic production of three salt drying technology enterprises over the years, according to the three base lead sulfate than the m..

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[introduction] heat treatment refers to the material in the solid state, through heating, insulation and cooling means changing the chemical composition and microstructure of the surface or internal, ..

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1, pressure vessel in the selection of materials should be considered when the performance?The selection of pressure vessels should consider the mechanical properties, chemical properties, physical pr..

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[introduction] pipe flange gasket, and the fasteners are collectively referred to as flange joint. Flange joints are widely used in engineering design, which involves a very wide range of parts. It is..

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