袋帽acorn canuts: 铁盖焊接袋帽; 铁器焊接袋帽hex canuts: 六角盖头螺帽hexagon canuts: 薄型盲螺母outer canuts: 卡车轮胎螺帽conical washer and canuts: 袋帽螺帽下载手机词典可随时随地查词查翻译
