发明授权
US5252269A Method for molding polypropylene resin 失效
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Method for molding polypropylene resin
摘要:
A method for molding a foamed particle of a polypropylene resin. The polypropylene resin includes a homopolymer and copolymer of polypropylene resin, as well as a mixture of a polypropylene resin and another resin.
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