dual seal的意思|示意
双密封
dual seal相关短语
1、 dual-seal 双重密封
2、 dual-seal tubing joint 双封型油管接头
3、 dual seal coat 稀浆双封层
4、 dual seal bore adapter 双密封孔连接法兰
5、 dual seal tubing joint 双封型油管接头
6、 Dual-seal silica gel rings 双密封硅胶圈
7、 dual inside and outside seal 双重内外密封