The extrusion line for film and plate of chemically foamed PP, the production equipment for heat moulding plate of physically foamed PP and the application of foamed PP were presented.是什么意思_The extrusion line for film and plate of chemically foamed PP, the production equipment for heat moulding plate of physically foamed PP and the application of foamed PP were presented.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句