Patents/具有泡沫芯的夹芯构造类型的型材的连续制造和硬质泡沫填充的型材Granted具有泡沫芯的夹芯构造类型的型材的连续制造和硬质泡沫填充的型材Ask AI about thisSign in to saveView source ↗← Back to patentsCurated by f1frp editorial