頭螺栓密封套 closure stud: 主螺栓closure-sealing embossed machine: 密封壓花機closure-sealing machine: 密封機oil-sealing sleeve: 油封套sealing sleeve of silicone rubber: 硅橡膠密封套筒下載手機詞典可隨時隨地查詞查翻譯