According to different principles of gas process, it can be divided into physical foaming and chemicalfoaming.
根据发泡剂发气过程原理的不同，可以分为物理发泡和化学发泡两大类。
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A new low temperature and deepwater slurry system prepared with chemicalfoaming gas and solid packings, which can reduce the density of the slurry, is introduced.
High flame resistant polyethylene high foaming products is petroleum chemical industry, construction industry, and refrigeration industries for cold insulation materials ideal.