纤pa66cf20+增强 碳gf15 pa66cf30+板棒 pa66cf1520尼龙ppapa46

棒尼龙 gf1520pa66cf15增强+纤碳 +板pa46pa66cf30 ppa pa66cf20

ppa pa66cf30 碳+尼龙 pa66cf15 纤 gf1520板棒+增强pa46pa66cf20