Metal bellows seal the two pressure chambers off from the gauge case 金属波纹管将两个压力室密封在表壳外。
2.
Bellows seal balance safety valve 波纹管平衡式安全阀
3.
Bellows sealed gate valve 波纹管密封的闸板阀
4.
Bellow sealed valve 波纹管密封阀
5.
Bellows seal gland 伸缩箱式封盖
6.
Bellows seal type 波纹管密封式
7.
Extensive bellows seal qualification testing has been performed in the research and development department to prove the bellows cycle life 在研究发展部进行的扩展波纹管密封合格测试证明波纹管的使用寿命。
