Molecular formula :
nature : also known as the exhaust. In the early stages of molding, plastic moisture or volatile, air or (and) aging caused by low-molecular-weight water and other volatile substances released operation. The thermosetting resin molding plastic pressurized plastic molding, plastic heating pressure early stage, using the instantaneous mode to open air or other volatile release operation. The transfer molding or injection molding, the mold cavity system installed using the keyhole, or extrusion molding using Extrusion Machine established by the exhaust of the release of water, air and other volatile substances. In particular, manufacturing large thick-walled workpieces or products, such as link gas, volatile substances will be encased in products, products from the model took after products will surface bubbles, turbidity, or crack, the poor quality of products.
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