ball valve seat
短语词组
- ball resolver valve seat 球形分解器閥座
- ball and seat valve 球形止廻閥
- Ball seat valve 球座閥
- valve ball seat 止廻閥球座
- check valve ball seat 止廻閥球座
- check -valve ball seat 止廻閥球座
- valve with ball seat 球座閥
- Solenoid valve with ball seat 球閥式電磁閥 返回 ball valve seat