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1. Good chemical stability: Most plastics have good acid, alkali, salt, water and gas resistance. Under normal conditions, they do not react with these substances.2. High specific strength and stiffness: the strength of plastics is not as high as that…
According to industry analysis, Chinas mould cost continued to rise, profit margin further compressed, and market share continued to decline. The lack of independent innovation ability and brand awareness of die and mould enterprises, repeated product… 